/* ============================================
   PRIEM CLUB - Main Styles
   Design System: Indigo/Purple, Mobile-first
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg-primary);
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    overflow-x: hidden;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
    -webkit-touch-callout: none;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
    color: var(--color-text-primary);
}

/* ============================================
   SCREENS & LAYOUT
   ============================================ */

.screen {
    display: none;
    width: 100%;
    max-width: var(--container-max);
    min-height: 100vh;
    animation: fadeIn 0.5s ease;
}

.screen.active {
    display: flex;
    flex-direction: column;
}

.container {
    background: var(--color-bg-card);
    padding: var(--space-xl);
    flex: 1;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1 {
    text-align: center;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    font-size: var(--fs-6xl);
    font-weight: var(--fw-black);
    letter-spacing: var(--ls-tight);
    line-height: var(--lh-tight);
}

h2 {
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    font-size: var(--fs-2xl);
    font-weight: var(--fw-black);
}

h3 {
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    color: var(--color-text-primary);
}

.section-label {
    font-size: var(--fs-xs);
    font-weight: var(--fw-black);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    color: var(--color-text-secondary);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

input[type="text"],
input[type="password"],
input[type="email"] {
    width: 100%;
    padding: var(--space-base) var(--space-lg);
    margin: var(--space-sm) 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-sizing: border-box;
    font-size: var(--fs-lg);
    transition: var(--transition-smooth);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

input[type="text"]::placeholder,
input[type="password"]::placeholder,
input[type="email"]::placeholder {
    color: var(--color-text-tertiary);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    background: var(--color-bg-card);
}

.input-with-icon {
    position: relative;
}

.input-icon {
    position: absolute;
    left: var(--space-base);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-tertiary);
    font-size: var(--fs-lg);
    pointer-events: none;
}

.input-icon-svg {
    position: absolute;
    left: var(--space-base);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--color-text-tertiary);
    pointer-events: none;
}

.input-with-icon input {
    padding-left: var(--space-3xl);
}

.form-label {
    display: block;
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    margin-bottom: var(--space-md);
    margin-left: var(--space-xs);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: var(--space-lg) var(--space-xl);
    border-radius: var(--radius-xl);
    font-size: var(--fs-base);
    font-weight: var(--fw-black);
    cursor: pointer;
    width: 100%;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-button);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
}

.btn-primary:hover {
    filter: brightness(1.05);
    transform: translateY(-2px);
    box-shadow: var(--shadow-button-hover);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: var(--fw-semibold);
    transition: var(--transition-smooth);
}

.btn-secondary:hover {
    background: var(--color-border);
}

/* ============================================
   LOGIN SCREEN
   ============================================ */

#loginScreen .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--color-bg-primary);
    padding: var(--space-xl);
}

.logo-section {
    text-align: center;
    margin-bottom: var(--space-3xl);
    animation: fadeInDown 0.7s ease;
}

.logo-container {
    width: 112px;
    height: 112px;
    background: var(--color-bg-card);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-xl);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.1);
    border: 1px solid var(--color-border);
    position: relative;
}

.logo-circles {
    position: relative;
    width: 72px;
    height: 72px;
}

.logo-circles .circle {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-primary);
}

.logo-circles .circle:nth-child(1) { inset: 0; }
.logo-circles .circle:nth-child(2) { inset: 6px; background: white; }
.logo-circles .circle:nth-child(3) { inset: 10px; background: var(--gradient-primary); }
.logo-circles .circle:nth-child(4) { inset: 16px; background: white; }
.logo-circles .circle:nth-child(5) { inset: 20px; background: var(--gradient-primary); }

.logo-online-dot {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 12px;
    height: 12px;
    background: var(--color-emerald);
    border-radius: 50%;
    animation: pulse-glow 2s infinite;
    box-shadow: var(--shadow-online);
}

.logo-title {
    font-size: var(--fs-6xl);
    font-weight: var(--fw-black);
    color: var(--color-text-primary);
    letter-spacing: var(--ls-tight);
    margin-bottom: var(--space-sm);
}

.logo-subtitle {
    font-size: var(--fs-base);
    font-weight: var(--fw-black);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    margin-bottom: var(--space-sm);
}

.logo-description {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    font-weight: var(--fw-medium);
}

/* Auth Card */
.auth-card {
    width: 100%;
    max-width: 380px;
    background: var(--color-bg-card);
    border-radius: var(--radius-2xl);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.05);
    border: 1px solid var(--color-border);
    overflow: hidden;
    animation: fadeInUp 0.7s ease;
}

.auth-toggle {
    display: flex;
    padding: var(--space-xs);
    margin: var(--space-base);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.auth-tab {
    flex: 1;
    padding: var(--space-md);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--fs-base);
    font-weight: var(--fw-bold);
    text-transform: uppercase;
    letter-spacing: var(--ls-wide);
    transition: var(--transition-smooth);
    background: transparent;
    color: var(--color-text-secondary);
}

.auth-tab.active {
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-elevated);
}

.login-form {
    padding: var(--space-xl);
    max-width: none;
    margin: 0;
}

.login-form .form-group {
    margin-bottom: var(--space-lg);
}

.quick-login {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
    margin-bottom: var(--space-base);
}

.quick-btn {
    padding: var(--space-sm) var(--space-base);
    border: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
}

.quick-btn:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.quick-btn.alice { }
.quick-btn.alice:hover { background: var(--color-primary); }
.quick-btn.bob { }
.quick-btn.bob:hover { background: var(--color-success); border-color: var(--color-success); }

.auth-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-2xl);
    animation: fadeInUp 0.7s ease 0.3s both;
}

.auth-footer-icon {
    color: var(--color-primary);
    font-size: var(--fs-base);
}

.auth-footer-icon-svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.auth-footer-text {
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
}

.error {
    color: var(--color-error);
    text-align: center;
    margin-top: var(--space-sm);
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
}

/* ============================================
   SETTINGS SCREEN
   ============================================ */

.settings-container {
    padding: var(--space-xl);
    padding-bottom: 100px;
    overflow-y: auto;
    max-height: 100vh;
    background: var(--color-bg-primary);
}

.settings-header {
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.settings-title {
    font-size: var(--fs-4xl);
    font-weight: var(--fw-black);
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.settings-subtitle {
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
}

/* Profile Card */
.settings-profile-card {
    display: flex;
    align-items: center;
    gap: var(--space-base);
    padding: var(--space-lg);
    background: var(--color-bg-card);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    margin-bottom: var(--space-2xl);
}

.settings-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--gradient-avatar);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-lg);
    font-weight: var(--fw-black);
    color: var(--color-primary);
    flex-shrink: 0;
}

.settings-profile-info {
    flex: 1;
    min-width: 0;
}

.settings-profile-name {
    font-size: var(--fs-lg);
    font-weight: var(--fw-bold);
    color: var(--color-text-primary);
    margin-bottom: 2px;
}

.settings-profile-email {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    margin-bottom: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.settings-profile-id {
    font-size: var(--fs-xs);
    color: var(--color-primary);
    font-family: monospace;
}

.settings-edit-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-primary);
    transition: var(--transition-smooth);
    flex-shrink: 0;
}

.settings-edit-btn:hover {
    background: var(--color-primary-ultra-light);
}

/* Section Labels */
.settings-section-label {
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    margin-bottom: var(--space-md);
    margin-left: var(--space-xs);
}

/* Settings Cards */
.settings-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    margin-bottom: var(--space-2xl);
    overflow: hidden;
}

.settings-item {
    display: flex;
    align-items: center;
    gap: var(--space-base);
    padding: var(--space-lg) var(--space-xl);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.settings-item:hover {
    background: var(--color-bg-secondary);
}

.settings-item-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--color-bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.settings-item-content {
    flex: 1;
    min-width: 0;
}

.settings-item-title {
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
    color: var(--color-text-primary);
    margin-bottom: 2px;
}

.settings-item-desc {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
}

.settings-item-chevron {
    color: var(--color-text-tertiary);
    flex-shrink: 0;
}

.settings-item-divider {
    height: 1px;
    background: var(--color-border);
    margin: 0 var(--space-xl);
}

/* Toggle Switch */
.settings-toggle {
    position: relative;
    width: 52px;
    height: 28px;
    flex-shrink: 0;
}

.settings-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.settings-toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--color-text-tertiary);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.settings-toggle-slider::before {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: var(--transition-smooth);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.settings-toggle input:checked + .settings-toggle-slider {
    background: var(--color-primary);
}

.settings-toggle input:checked + .settings-toggle-slider::before {
    transform: translateX(24px);
}

/* Logout Button */
.settings-logout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    width: 100%;
    padding: var(--space-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-rose);
    border-radius: var(--radius-2xl);
    color: var(--color-rose);
    font-size: var(--fs-base);
    font-weight: var(--fw-black);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    cursor: pointer;
    transition: var(--transition-smooth);
    margin-bottom: var(--space-3xl);
}

.settings-logout-btn:hover {
    background: var(--color-rose);
    color: white;
}

/* Footer Branding */
.settings-footer {
    text-align: center;
    padding: var(--space-xl) 0 var(--space-2xl);
}

.settings-footer-logo {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-md);
    position: relative;
}

.settings-footer-circles {
    position: relative;
    width: 48px;
    height: 48px;
}

.settings-footer-circles .circle {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-primary);
}

.settings-footer-circles .circle:nth-child(1) { inset: 0; }
.settings-footer-circles .circle:nth-child(2) { inset: 4px; background: white; }
.settings-footer-circles .circle:nth-child(3) { inset: 7px; background: var(--gradient-primary); }
.settings-footer-circles .circle:nth-child(4) { inset: 10px; background: white; }
.settings-footer-circles .circle:nth-child(5) { inset: 13px; background: var(--gradient-primary); }

.settings-footer-brand {
    font-size: var(--fs-lg);
    font-weight: var(--fw-black);
    color: var(--color-text-primary);
    margin-bottom: 2px;
}

.settings-footer-tagline {
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    margin-bottom: var(--space-sm);
}

.settings-footer-version {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.settings-footer-copy {
    font-size: var(--fs-xs);
    color: var(--color-text-tertiary);
}

/* ============================================
   DIRECTORY / CONTACTS SCREEN
   ============================================ */

#directoryScreen .container {
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.header {
    background: var(--color-bg-card);
    padding: var(--space-3xl) var(--space-xl) var(--space-base);
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0;
}

.header-left h1 {
    font-size: var(--fs-3xl);
    text-align: left;
    margin-bottom: var(--space-xs);
}

.header-left .section-label {
    margin: 0;
}

.header-actions {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.header-action-btn {
    padding: var(--space-sm);
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
    font-size: var(--fs-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-action-btn:hover {
    color: var(--color-primary);
}

.header-action-btn.primary {
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-md);
}

.header-action-btn.primary:hover {
    background: rgba(99, 102, 241, 0.2);
}

.header-action-btn.danger:hover {
    color: var(--color-rose);
}

/* User Info (for backward compat) */
.user-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: var(--fw-bold);
    color: var(--color-text-primary);
}

.user-badge {
    font-size: var(--fs-3xl);
}

/* Contact Cards */
.user-list {
    flex: 1;
    overflow-y: auto;
    padding-bottom: 100px;
}

.contacts-section-label {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--fs-xs);
    font-weight: var(--fw-black);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
}

.user-card {
    display: flex;
    align-items: center;
    gap: var(--space-base);
    padding: var(--space-base) var(--space-xl);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.user-card:hover {
    background: rgba(255, 255, 255, 0.5);
}

.user-card:active {
    transform: scale(0.98);
}

.user-avatar {
    width: var(--avatar-md);
    height: var(--avatar-md);
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    box-shadow: var(--shadow-elevated);
    flex-shrink: 0;
}

.user-info-card {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.user-name {
    font-weight: var(--fw-bold);
    font-size: var(--fs-lg);
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.display-name {
    font-weight: var(--fw-bold);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.original-name {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
}

.user-id {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
}

.card-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.btn-edit {
    background: none;
    border: none;
    padding: var(--space-sm);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition-smooth);
    font-size: var(--fs-base);
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-edit:hover {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.btn-call {
    width: var(--avatar-md);
    height: var(--avatar-md);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-button);
    font-size: var(--fs-xl);
    flex-shrink: 0;
}

.btn-call:hover {
    background: var(--color-primary-hover);
    transform: scale(1.05);
}

.btn-call:active {
    transform: scale(0.9);
}

.btn-call .call-icon {
    font-size: var(--fs-lg);
}

.btn-call span:last-child:not(.call-icon) {
    display: none;
}

.no-users {
    text-align: center;
    color: var(--color-text-secondary);
    padding: var(--space-5xl) var(--space-xl);
    font-size: var(--fs-base);
}

/* ============================================
   BOTTOM NAVIGATION
   ============================================ */

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-width: var(--container-max);
    margin: 0 auto;
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 80px;
    padding: 0 var(--space-xl);
    z-index: 30;
    box-shadow: 0 -4px 16px rgba(99, 102, 241, 0.05);
    padding-bottom: env(safe-area-inset-bottom);
}

.nav-tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: var(--transition-smooth);
    padding: var(--space-sm);
}

.nav-tab.active {
    color: var(--color-primary);
    transform: scale(1.1);
}

.nav-tab-icon {
    font-size: var(--fs-2xl);
}

.nav-tab-label {
    font-size: 9px;
    font-weight: var(--fw-black);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
}

/* ============================================
   INVITATIONS PANEL
   ============================================ */

.invitations-panel {
    background: rgba(255, 255, 255, 0.5);
    border-bottom: 1px solid var(--color-border);
}

.panel-header {
    padding: var(--space-base) var(--space-xl);
    border-bottom: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
    transition: var(--transition-smooth);
}

.panel-header:hover {
    background: rgba(255, 255, 255, 0.8);
}

.panel-header h4 {
    margin: 0;
    color: var(--color-text-primary);
    font-size: var(--fs-base);
    font-weight: var(--fw-bold);
}

.panel-header .panel-subtitle {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    font-weight: var(--fw-bold);
    margin-top: 2px;
}

.panel-toggle {
    color: var(--color-text-secondary);
    font-size: var(--fs-base);
}

.panel-content {
    padding: 0 var(--space-xl) var(--space-base);
}

.panel-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-lg);
}

.small-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-bg-secondary);
    border-top: 2px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.invites-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.invite-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-base);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.invite-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.invite-token {
    font-family: monospace;
    font-size: var(--fs-sm);
    color: var(--color-primary);
    font-weight: var(--fw-semibold);
}

.invite-expiry {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    font-weight: var(--fw-bold);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
}

.invite-actions {
    display: flex;
    gap: var(--space-sm);
}

.btn-small-copy,
.btn-small-revoke {
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    padding: var(--space-sm);
    cursor: pointer;
    font-size: var(--fs-base);
    color: var(--color-text-secondary);
    transition: var(--transition-smooth);
}

.btn-small-copy:hover {
    background: var(--color-bg-card);
    color: var(--color-primary);
}

.btn-small-revoke:hover {
    background: rgba(244, 63, 94, 0.1);
    color: var(--color-rose);
}

.empty-state {
    text-align: center;
    color: var(--color-text-secondary);
    padding: var(--space-xl);
    font-size: var(--fs-sm);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
}

/* ============================================
   CONNECTION STATUS
   ============================================ */

.connection-status {
    position: fixed;
    bottom: 90px;
    right: var(--space-sm);
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    box-shadow: var(--shadow-elevated);
    border: 1px solid var(--color-border);
    z-index: 20;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    font-size: var(--fs-sm);
}

.connection-info,
.network-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-secondary);
}

.status-indicator,
.network-indicator {
    font-size: var(--fs-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
}

#wsStatusText {
    font-weight: var(--fw-semibold);
    color: var(--color-text-secondary);
}

#wsStatusText.connected {
    color: var(--color-success);
}

#wsStatusText.disconnected {
    color: var(--color-error);
}

#networkType {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
}

/* ============================================
   CALL SCREEN (Dark Theme)
   ============================================ */

#callScreen .container {
    background: var(--color-dark-bg);
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5xl) var(--space-2xl);
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.call-bg-glow {
    position: absolute;
    width: 256px;
    height: 256px;
    border-radius: 50%;
    filter: blur(100px);
    animation: pulse-glow 3s infinite;
}

.call-bg-glow.top {
    top: -10%;
    left: -10%;
    background: rgba(16, 185, 129, 0.15);
}

.call-bg-glow.bottom {
    bottom: -10%;
    right: -10%;
    background: rgba(16, 185, 129, 0.08);
}

.call-container {
    text-align: center;
    z-index: 1;
    width: 100%;
}

.call-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-3xl);
}

.avatar {
    width: var(--avatar-2xl);
    height: var(--avatar-2xl);
    background: var(--color-dark-surface);
    border: 4px solid var(--color-dark-bg);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-6xl);
    margin: 0 auto var(--space-2xl);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    position: relative;
}

.avatar-ring {
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 2px solid rgba(16, 185, 129, 0.15);
}

.avatar-inner {
    width: 112px;
    height: 112px;
    border-radius: 50%;
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    font-weight: var(--fw-bold);
    color: white;
}

#remoteUserName {
    font-size: var(--fs-4xl);
    font-weight: var(--fw-black);
    margin-bottom: var(--space-md);
    color: white;
    letter-spacing: var(--ls-tight);
}

.call-status-badge {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.call-status-badge .shield-icon {
    color: var(--color-emerald);
    font-size: var(--fs-lg);
}

#callStatus {
    color: var(--color-emerald);
    font-weight: var(--fw-medium);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    font-size: var(--fs-sm);
}

.timer {
    font-size: var(--fs-5xl);
    font-weight: var(--fw-black);
    color: white;
    font-variant-numeric: tabular-nums;
}

.call-controls {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.control-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    color: white;
    padding: 0;
}

.control-btn:active {
    transform: scale(0.95);
}

.control-btn-circle {
    width: var(--btn-xl);
    height: var(--btn-xl);
    border-radius: 50%;
    background: var(--color-dark-surface);
    border: 1px solid var(--color-dark-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-3xl);
    color: white;
    transition: var(--transition-smooth);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.control-btn-circle:hover {
    background: #334155;
}

.control-btn.active .control-btn-circle {
    background: var(--color-rose);
    border-color: var(--color-rose);
}

.control-btn-label {
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    color: var(--color-dark-text);
}

.btn-end-call {
    width: var(--btn-call);
    height: var(--btn-call);
    background: var(--color-rose);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: var(--fs-3xl);
    cursor: pointer;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-end-call);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-end-call:hover {
    background: #e11d48;
    transform: scale(1.05);
}

.btn-end-call:active {
    transform: scale(0.9);
}

/* ============================================
   INCOMING CALL SCREEN (Dark Theme)
   ============================================ */

#incomingCallScreen .container {
    background: var(--color-dark-bg);
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5xl) var(--space-2xl);
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.incoming-container {
    text-align: center;
    z-index: 1;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
}

.incoming-label {
    font-size: var(--fs-xs);
    font-weight: var(--fw-black);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    color: var(--color-dark-text);
    margin-bottom: var(--space-3xl);
}

.caller-info {
    margin: 0 0 var(--space-2xl);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.caller-avatar-wrapper {
    position: relative;
    margin-bottom: var(--space-2xl);
}

.pulse-ring {
    position: absolute;
    inset: -16px;
    border-radius: 50%;
    animation: pulse-ring 2s ease-out infinite;
}

.pulse-ring:nth-child(1) {
    background: rgba(16, 185, 129, 0.25);
}

.pulse-ring:nth-child(2) {
    background: rgba(16, 185, 129, 0.15);
    animation-delay: 0.5s;
}

#callerName {
    font-size: var(--fs-4xl);
    font-weight: var(--fw-black);
    color: white;
    letter-spacing: var(--ls-tight);
    margin-bottom: var(--space-md);
}

.incoming-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.incoming-status .shield-icon {
    color: var(--color-emerald);
}

.incoming-status-text {
    color: var(--color-dark-text);
    font-size: var(--fs-base);
    font-weight: var(--fw-bold);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
}

.call-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-3xl);
    margin-top: var(--space-3xl);
}

.call-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.call-action-btn:active {
    transform: scale(0.95);
}

.btn-decline,
.btn-accept {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    font-size: var(--fs-4xl);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    color: white;
    padding: 0;
}

.btn-decline {
    background: var(--color-rose);
    box-shadow: var(--shadow-end-call);
}

.btn-decline:hover {
    background: #e11d48;
    transform: scale(1.05);
}

.btn-accept {
    background: var(--color-success);
    box-shadow: var(--shadow-call);
    animation: pulse-accept 1.5s infinite;
}

.btn-accept:hover {
    background: var(--color-emerald);
    transform: scale(1.05);
}

.btn-decline:active,
.btn-accept:active {
    transform: scale(0.9);
}

.call-action-label {
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    color: var(--color-dark-text);
}

.incoming-footer {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-2xl);
}

.incoming-footer-text {
    color: var(--color-dark-text);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    opacity: 0.5;
}

/* ============================================
   INVITE STATS BADGE
   ============================================ */

.invite-stats-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-full);
    font-size: var(--fs-base);
    margin-left: var(--space-md);
}

.stats-active {
    font-weight: var(--fw-semibold);
    color: var(--color-primary);
}

.stats-separator {
    color: var(--color-text-tertiary);
}

.stats-max {
    color: var(--color-text-tertiary);
}

.stats-label {
    color: var(--color-text-secondary);
    font-size: var(--fs-sm);
    margin-left: 2px;
}

/* Header action buttons (directory) */
.btn-invite {
    padding: var(--space-sm);
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--fs-base);
    font-weight: var(--fw-bold);
}

.btn-invite:hover {
    background: rgba(99, 102, 241, 0.2);
}

.btn-invite:active {
    transform: scale(0.95);
}

.btn-logout {
    padding: var(--space-sm);
    background: none;
    color: var(--color-text-secondary);
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-size: var(--fs-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
}

.btn-logout:hover {
    color: var(--color-rose);
}

.btn-icon {
    font-size: var(--fs-lg);
}

/* ============================================
   MODALS
   ============================================ */

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--color-bg-card);
    border-radius: var(--radius-2xl);
    width: 90%;
    max-width: 420px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s;
    border: 1px solid var(--color-border);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.modal-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    color: var(--color-text-primary);
    font-weight: var(--fw-bold);
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--fs-3xl);
    cursor: pointer;
    color: var(--color-text-tertiary);
    padding: 0;
    width: 32px;
    height: 32px;
    transition: var(--transition-smooth);
}

.modal-close:hover {
    color: var(--color-text-secondary);
}

.modal-body {
    padding: var(--space-lg);
}

.invite-section {
    text-align: center;
}

.invite-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    font-size: var(--fs-base);
}

.invite-limits {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
    border: 1px solid var(--color-border);
}

.limit-indicator {
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    color: var(--color-text-primary);
}

.limit-note {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    margin-top: var(--space-xs);
}

.success-icon {
    font-size: var(--fs-6xl);
    margin-bottom: var(--space-base);
}

.success-message {
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.invite-link-container {
    display: flex;
    gap: var(--space-sm);
    margin: var(--space-base) 0;
}

.invite-link-input {
    flex: 1;
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-size: var(--fs-base);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.btn-copy {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: var(--fw-bold);
    min-width: 80px;
    transition: var(--transition-smooth);
}

.btn-copy:hover {
    background: var(--color-primary-hover);
}

.btn-copy.copied {
    background: var(--color-success);
}

.invite-details {
    margin: var(--space-lg) 0;
}

.detail-item {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin: var(--space-sm) 0;
}

.detail-label {
    color: var(--color-text-secondary);
}

.detail-value {
    font-weight: var(--fw-bold);
    color: var(--color-text-primary);
}

.modal-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-top: var(--space-lg);
}

/* ============================================
   STATUS MESSAGES
   ============================================ */

.status-message {
    position: fixed;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-lg);
    font-weight: var(--fw-bold);
    z-index: 1000;
    transition: var(--transition-smooth);
    max-width: 340px;
    text-align: center;
    font-size: var(--fs-base);
    box-shadow: var(--shadow-strong);
}

.status-message.show {
    top: var(--space-lg);
}

.status-message.success {
    background: var(--color-success);
    color: white;
}

.status-message.warning {
    background: var(--color-warning);
    color: white;
}

.status-message.error {
    background: var(--color-error);
    color: white;
}

.status-message.info {
    background: var(--color-primary);
    color: white;
}

/* ============================================
   PWA INSTALL COMPONENTS
   ============================================ */

.install-banner {
    position: fixed;
    bottom: var(--space-lg);
    left: var(--space-sm);
    right: var(--space-sm);
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-strong);
    padding: var(--space-lg);
    z-index: 1000;
    animation: slideUp 0.3s ease;
    max-width: var(--container-max);
    margin: 0 auto;
    border: 1px solid var(--color-border);
}

.install-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-base);
}

.btn-install {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: var(--fw-bold);
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-button);
}

.btn-install:hover {
    background: var(--color-primary-hover);
}

.btn-dismiss {
    background: transparent;
    border: none;
    color: var(--color-text-tertiary);
    font-size: var(--fs-3xl);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.btn-dismiss:hover {
    color: var(--color-text-secondary);
}

.btn-dismiss-pwa {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: var(--fw-semibold);
    font-size: var(--fs-base);
    transition: var(--transition-smooth);
}

.btn-dismiss-pwa:hover {
    background: var(--color-bg-secondary);
}

.pwa-install-float {
    position: fixed;
    bottom: 100px;
    right: var(--space-lg);
    width: 56px;
    height: 56px;
    background: var(--color-primary);
    border-radius: 50%;
    box-shadow: var(--shadow-button);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    animation: pulse-glow 2s infinite;
    transition: var(--transition-smooth);
    color: white;
    font-size: var(--fs-3xl);
}

.pwa-install-float:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-button-hover);
}

.pwa-install-float:active {
    transform: scale(0.95);
}

/* Update Notification */
.update-notification {
    position: fixed;
    top: -100px;
    left: var(--space-sm);
    right: var(--space-sm);
    background: var(--color-success);
    color: white;
    padding: var(--space-base) var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-call);
    z-index: 1001;
    transition: var(--transition-smooth);
    max-width: 400px;
    margin: 0 auto;
}

.update-notification.show {
    top: var(--space-lg);
}

.update-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-base);
    flex-wrap: wrap;
}

.btn-update, .btn-dismiss-update {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-update:hover, .btn-dismiss-update:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* ============================================
   LOADING STATES
   ============================================ */

.loading {
    pointer-events: none;
    opacity: 0.7;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-bg-secondary);
    border-top: 4px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: var(--space-lg) auto;
}

/* ============================================
   SEARCH BOX
   ============================================ */

.search-box {
    margin-bottom: var(--space-lg);
    padding: 0 var(--space-xl);
}

.search-box input {
    width: 100%;
    padding: var(--space-md) var(--space-base);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: var(--fs-lg);
    transition: var(--transition-smooth);
    background: var(--color-bg-secondary);
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse-glow {
    0% { box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3); }
    50% { box-shadow: 0 4px 25px rgba(99, 102, 241, 0.5); }
    100% { box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3); }
}

@keyframes pulse-ring {
    0% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.4); opacity: 0; }
    100% { transform: scale(1); opacity: 0; }
}

@keyframes pulse-accept {
    0% { box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4); }
    50% { box-shadow: 0 8px 32px rgba(16, 185, 129, 0.6); transform: scale(1.05); }
    100% { box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4); }
}

@keyframes statusPulse {
    0% { opacity: 0.7; }
    100% { opacity: 1; }
}

/* ============================================
   TOUCH & MOBILE ENHANCEMENTS
   ============================================ */

.touch-device button,
.touch-device .btn {
    min-height: 44px;
    min-width: 44px;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

body.pwa-mode {
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
}

/* iOS Specific */
body.ios {
    -webkit-appearance: none;
}

body.ios input {
    -webkit-appearance: none;
    border-radius: var(--radius-lg);
}

body.ios button {
    -webkit-appearance: none;
}

/* Android Specific */
body.android {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 480px) {
    h1 { font-size: var(--fs-4xl); }
    h2 { font-size: var(--fs-xl); }

    .header {
        padding: var(--space-2xl) var(--space-base) var(--space-md);
    }

    .user-card {
        padding: var(--space-md) var(--space-base);
    }

    .contacts-section-label {
        padding: var(--space-md) var(--space-base);
    }

    .connection-status {
        bottom: 85px;
        right: var(--space-xs);
        left: var(--space-xs);
        flex-direction: row;
        justify-content: space-between;
        min-width: auto;
        padding: var(--space-sm) var(--space-md);
    }
}

@media (max-height: 500px) and (orientation: landscape) {
    .container {
        max-height: calc(100vh - 40px);
        overflow-y: auto;
    }
    h1 { font-size: var(--fs-3xl); }
    h2 { font-size: var(--fs-base); }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ============================================
   PERFORMANCE
   ============================================ */

.user-card,
.container,
.install-banner,
.pwa-install-float {
    will-change: auto;
    transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

/* ============================================
   PRINT
   ============================================ */

@media print {
    body { background: white; color: black; }
    .pwa-install-float, .install-banner, .update-notification, .bottom-nav { display: none; }
    .container { box-shadow: none; border: 1px solid #ccc; }
}

/* ============================================
   MODAL BUTTON VARIANTS (inline style overrides)
   ============================================ */

.btn-modal-send,
.btn-modal-save {
    flex: 1;
    padding: var(--space-md);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--fs-md);
    font-weight: var(--fw-bold);
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    box-shadow: var(--shadow-button);
}

.btn-modal-send:hover,
.btn-modal-save:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
}

.btn-modal-cancel {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--fs-md);
    font-weight: var(--fw-bold);
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.btn-modal-cancel:hover {
    background: var(--color-border);
}

.btn-modal-clear {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--fs-md);
    font-weight: var(--fw-bold);
    transition: var(--transition-smooth);
}

.btn-modal-clear:hover {
    background: var(--color-warning);
    color: white;
    border-color: var(--color-warning);
}

.btn-modal-send:active,
.btn-modal-save:active,
.btn-modal-cancel:active,
.btn-modal-clear:active {
    transform: scale(0.98);
}