/**
 * Google Meet Scheduler - Premium Redesign
 * EXACT Google Meet Color Scheme + Advanced Best Practices
 * Following Material Design 3 + Google Meet Design System
 */

/* ========================================
   GOOGLE MEET COLOR VARIABLES (EXACT)
======================================== */
:root {
    /* Primary Colors - Google Meet Brand */
    --gm-green: #00832D;              /* Google Meet Primary Green */
    --gm-green-dark: #006624;         /* Darker green for hover */
    --gm-green-light: #E6F4EA;        /* Light green background */
    --gm-green-hover: rgba(0, 131, 45, 0.08);
    --gm-green-pressed: rgba(0, 131, 45, 0.16);

    /* Secondary Colors */
    --gm-blue: #1A73E8;               /* Google Blue for accents */
    --gm-blue-dark: #1557B0;
    --gm-blue-light: #E8F0FE;
    --gm-blue-hover: rgba(26, 115, 232, 0.08);

    /* Semantic Colors */
    --gm-red: #EA4335;                /* Error/Danger/Hangup */
    --gm-red-light: #FCE8E6;
    --gm-red-hover: rgba(234, 67, 53, 0.08);
    --gm-yellow: #FBBC04;             /* Warning */
    --gm-yellow-light: #FEF7E0;

    /* Neutral Colors - Google Meet Grays */
    --gm-gray-900: #202124;           /* Primary text */
    --gm-gray-800: #3C4043;           /* Secondary text / headers */
    --gm-gray-700: #5F6368;           /* Tertiary text */
    --gm-gray-600: #80868B;           /* Disabled text */
    --gm-gray-300: #DADCE0;           /* Borders */
    --gm-gray-200: #E8EAED;           /* Dividers */
    --gm-gray-100: #F1F3F4;           /* Background */
    --gm-gray-50: #F8F9FA;            /* Elevated surfaces */

    /* Surface Colors */
    --gm-surface: #FFFFFF;
    --gm-background: #F1F3F4;
    --gm-surface-variant: #F8F9FA;

    /* Elevation System - Google's Exact Shadows */
    --elevation-0: none;
    --elevation-1: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
    --elevation-2: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 2px 6px 2px rgba(60, 64, 67, 0.15);
    --elevation-3: 0 4px 8px 3px rgba(60, 64, 67, 0.15), 0 1px 3px rgba(60, 64, 67, 0.3);
    --elevation-4: 0 6px 10px 4px rgba(60, 64, 67, 0.15), 0 2px 3px rgba(60, 64, 67, 0.3);
    --elevation-5: 0 8px 12px 6px rgba(60, 64, 67, 0.15), 0 4px 4px rgba(60, 64, 67, 0.3);

    /* Border Radius - Google Meet Radii */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-pill: 9999px;

    /* Transitions - Material Design 3 */
    --transition-fast: 100ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-enter: 200ms cubic-bezier(0, 0, 0.2, 1);
    --transition-exit: 150ms cubic-bezier(0.4, 0, 1, 1);

    /* Spacing Scale - 4px base */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;

    /* Typography Scale */
    --font-xs: 11px;
    --font-sm: 12px;
    --font-base: 14px;
    --font-md: 16px;
    --font-lg: 18px;
    --font-xl: 20px;
    --font-2xl: 24px;
    --font-3xl: 28px;
    --font-4xl: 32px;

    /* Z-Index Scale */
    --z-base: 0;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ========================================
   RESET & BASE STYLES
======================================== */
.google-meet-container * {
    box-sizing: border-box;
}

.google-meet-container {
    margin: 0;
    padding: 0;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    max-width: 1400px;
    margin: 0 auto;
    font-family: 'Google Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: var(--font-base);
    color: var(--gm-gray-900);
    line-height: 1.5;
}

/* ========================================
   HEADER
======================================== */
.google-meet-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-8);
    padding: var(--space-6) var(--space-8);
    background: linear-gradient(135deg, #00897B 0%, var(--gm-green) 100%);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-2);
    position: relative;
    overflow: hidden;
}

/* Subtle pattern overlay */
.google-meet-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.4;
    pointer-events: none;
}

.google-meet-header > * {
    position: relative;
    z-index: 1;
}

.google-meet-header h3 {
    margin: 0;
    color: var(--gm-surface);
    font-size: var(--font-3xl);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    letter-spacing: -0.02em;
}

.google-meet-header h3 i {
    color: var(--gm-surface);
    font-size: var(--font-4xl);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.google-meet-header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Status Badge - Enhanced */
#google-status-badge {
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-pill);
    font-size: var(--font-sm);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(255, 255, 255, 0.2);
    color: var(--gm-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition-base);
}

#google-status-badge i.fa-circle {
    font-size: 8px;
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.badge-success {
    background: rgba(255, 255, 255, 0.95) !important;
    color: var(--gm-green) !important;
    border-color: rgba(255, 255, 255, 0.95) !important;
    box-shadow: 0 2px 8px rgba(0, 131, 45, 0.3);
}

.badge-success i.fa-circle {
    color: var(--gm-green);
}

.badge-warning {
    background: rgba(251, 188, 4, 0.95) !important;
    color: var(--gm-gray-900) !important;
    border-color: rgba(255, 255, 255, 0.5) !important;
}

.badge-warning i.fa-circle {
    color: var(--gm-gray-900);
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

#disconnectGoogleBtn {
    background: rgba(255, 255, 255, 0.15);
    border: 1.5px solid rgba(255, 255, 255, 0.4);
    color: var(--gm-surface);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-pill);
    font-size: var(--font-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

#disconnectGoogleBtn:hover {
    background: var(--gm-red);
    border-color: var(--gm-red);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(234, 67, 53, 0.4);
}

#disconnectGoogleBtn:active {
    transform: translateY(0);
}

/* ========================================
   HERO SECTION - QUICK ACTIONS
======================================== */
.google-meet-hero {
    background: linear-gradient(135deg, var(--gm-green-light) 0%, var(--gm-surface) 100%);
    border-radius: var(--radius-lg);
    padding: var(--space-10) var(--space-8);
    margin-bottom: var(--space-8);
    border: 2px solid var(--gm-gray-300);
    position: relative;
    overflow: hidden;
}

/* Decorative background circles */
.google-meet-hero::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 131, 45, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    top: -100px;
    right: -100px;
    pointer-events: none;
}

.google-meet-hero::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(26, 115, 232, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    bottom: -50px;
    left: -50px;
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-left h2 {
    font-size: var(--font-4xl);
    font-weight: 500;
    color: var(--gm-gray-900);
    margin: 0 0 var(--space-3) 0;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.hero-left p {
    font-size: var(--font-md);
    color: var(--gm-gray-700);
    margin: 0 0 var(--space-6) 0;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* Primary Button - Google Meet Green */
.btn-hero-primary {
    background: var(--gm-green);
    color: var(--gm-surface);
    border: none;
    padding: var(--space-3) var(--space-8);
    font-size: var(--font-md);
    font-weight: 600;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--elevation-2);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    position: relative;
    overflow: hidden;
}

.btn-hero-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition-base);
}

.btn-hero-primary:hover {
    background: var(--gm-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--elevation-4);
}

.btn-hero-primary:hover::before {
    opacity: 1;
}

.btn-hero-primary:active {
    transform: translateY(0);
    box-shadow: var(--elevation-1);
}

.btn-hero-primary i {
    font-size: var(--font-lg);
}

/* Secondary Button - Outlined */
.btn-hero-secondary {
    background: var(--gm-surface);
    color: var(--gm-green);
    border: 2px solid var(--gm-green);
    padding: calc(var(--space-3) - 2px) calc(var(--space-8) - 2px);
    font-size: var(--font-md);
    font-weight: 600;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.btn-hero-secondary:hover {
    background: var(--gm-green-light);
    transform: translateY(-2px);
    box-shadow: var(--elevation-2);
}

.btn-hero-secondary:active {
    transform: translateY(0);
}

.hero-right {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-illustration {
    width: 100%;
    max-width: 280px;
    height: 200px;
    background: var(--gm-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-3);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-illustration::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, var(--gm-green-light) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

.hero-illustration i {
    font-size: 80px;
    color: var(--gm-green);
    z-index: 1;
    filter: drop-shadow(0 4px 8px rgba(0, 131, 45, 0.2));
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ========================================
   CONNECTION SECTION (COMPACT)
======================================== */
.google-connect-card {
    background: var(--gm-surface);
    border: 2px solid var(--gm-gray-300);
    color: var(--gm-gray-700);
    padding: var(--space-6) var(--space-8);
    border-radius: var(--radius-lg);
    text-align: center;
    margin-bottom: var(--space-8);
    transition: var(--transition-base);
    box-shadow: var(--elevation-1);
}

.google-connect-card:hover {
    box-shadow: var(--elevation-2);
}

.google-connect-card.connected {
    border-color: var(--gm-green);
    background: var(--gm-green-light);
    box-shadow: 0 0 0 4px rgba(0, 131, 45, 0.1);
}

.google-connect-card h4 {
    color: var(--gm-gray-900);
    margin-bottom: var(--space-2);
    font-size: var(--font-lg);
    font-weight: 600;
    letter-spacing: -0.01em;
}

.google-connect-card p {
    color: var(--gm-gray-700);
    margin-bottom: var(--space-5);
    font-size: var(--font-base);
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

#connectGoogleBtn {
    background: var(--gm-green);
    color: var(--gm-surface);
    border: none;
    padding: var(--space-3) var(--space-8);
    font-size: var(--font-md);
    font-weight: 600;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--elevation-2);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

#connectGoogleBtn:hover {
    background: var(--gm-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--elevation-3);
}

#connectGoogleBtn:active {
    transform: translateY(0);
    box-shadow: var(--elevation-1);
}

#connectGoogleBtn.connected {
    background: var(--gm-green);
}

#connectGoogleBtn.connected:hover {
    background: var(--gm-green-dark);
}

#connectGoogleBtn i {
    font-size: var(--font-lg);
}

#connectGoogleBtn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.custom-control {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--gm-gray-100);
    border-radius: var(--radius-pill);
    border: 1px solid var(--gm-gray-300);
    transition: var(--transition-base);
    margin-top: var(--space-4);
}

.custom-control:hover {
    background: var(--gm-gray-200);
    border-color: var(--gm-gray-300);
}

.custom-control-label {
    margin: 0;
    font-size: var(--font-sm);
    color: var(--gm-gray-700);
    font-weight: 500;
    cursor: pointer;
    user-select: none;
}

#demo-mode-toggle {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--gm-green);
}

#connection-status-message {
    margin-top: var(--space-4);
    padding: var(--space-3) var(--space-5);
    background: var(--gm-green-light);
    border-radius: var(--radius-sm);
    color: var(--gm-green-dark);
    font-size: var(--font-base);
    font-weight: 500;
    animation: fadeInDown 0.3s ease;
    border: 1px solid rgba(0, 131, 45, 0.2);
}

#security-note {
    margin-top: var(--space-3);
    font-size: var(--font-sm);
    color: var(--gm-gray-600);
}

/* ========================================
   MEETING FORM (TWO-COLUMN LAYOUT)
======================================== */
.meeting-scheduler {
    background: var(--gm-surface);
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-8);
    border: 2px solid var(--gm-gray-300);
    animation: slideInUp 0.3s ease;
    box-shadow: var(--elevation-1);
}

.meeting-scheduler:hover {
    box-shadow: var(--elevation-2);
}

.meeting-scheduler h4 {
    color: var(--gm-gray-900);
    margin-bottom: var(--space-6);
    font-size: var(--font-xl);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    letter-spacing: -0.01em;
}

.meeting-scheduler h4 i {
    color: var(--gm-green);
}

.form-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
}

.form-layout-full {
    grid-column: 1 / -1;
}

.form-group {
    margin-bottom: 0;
}

.form-group label {
    font-weight: 600;
    color: var(--gm-gray-900);
    margin-bottom: var(--space-2);
    display: block;
    font-size: var(--font-base);
    letter-spacing: -0.01em;
}

.form-group label .required {
    color: var(--gm-red);
    margin-left: var(--space-1);
}

.form-control,
.form-select {
    border: 2px solid var(--gm-gray-300);
    border-radius: var(--radius-sm);
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-base);
    transition: var(--transition-base);
    background: var(--gm-surface);
    width: 100%;
    font-family: inherit;
    color: var(--gm-gray-900);
}

.form-control:hover,
.form-select:hover {
    border-color: var(--gm-gray-600);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--gm-green);
    box-shadow: 0 0 0 4px var(--gm-green-hover);
    outline: none;
}

.form-control::placeholder {
    color: var(--gm-gray-600);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
    line-height: 1.5;
}

.form-check {
    margin-top: var(--space-5);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--gm-gray-100);
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--gm-gray-300);
    transition: var(--transition-base);
}

.form-check:hover {
    background: var(--gm-gray-200);
}

.form-check-input {
    width: 20px;
    height: 20px;
    margin: 0;
    cursor: pointer;
    accent-color: var(--gm-green);
}

.form-check-label {
    cursor: pointer;
    font-size: var(--font-base);
    color: var(--gm-gray-900);
    font-weight: 500;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.form-check-label i {
    color: var(--gm-green);
}

.form-actions {
    margin-top: var(--space-6);
    display: flex;
    gap: var(--space-3);
    align-items: center;
}

#createMeetingBtn {
    background: var(--gm-green);
    border: none;
    color: var(--gm-surface);
    padding: var(--space-3) var(--space-8);
    font-size: var(--font-md);
    font-weight: 600;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--elevation-2);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

#createMeetingBtn:hover {
    background: var(--gm-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--elevation-3);
}

#createMeetingBtn:active {
    transform: translateY(0);
    box-shadow: var(--elevation-1);
}

#createMeetingBtn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-outline-secondary {
    background: var(--gm-surface);
    border: 2px solid var(--gm-gray-300);
    color: var(--gm-gray-700);
    padding: calc(var(--space-3) - 2px) calc(var(--space-8) - 2px);
    font-size: var(--font-md);
    font-weight: 600;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: var(--transition-base);
}

.btn-outline-secondary:hover {
    background: var(--gm-gray-100);
    border-color: var(--gm-gray-600);
    transform: translateY(-1px);
}

.btn-outline-secondary:active {
    transform: translateY(0);
}

/* ========================================
   MEETINGS LIST
======================================== */
.upcoming-meetings {
    margin-top: var(--space-8);
}

.upcoming-meetings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-5);
    padding: 0 var(--space-2);
}

.upcoming-meetings h4 {
    color: var(--gm-gray-900);
    margin: 0;
    font-size: var(--font-xl);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    letter-spacing: -0.01em;
}

.upcoming-meetings h4 i {
    color: var(--gm-green);
}

.btn-refresh {
    background: var(--gm-surface);
    border: 2px solid var(--gm-gray-300);
    color: var(--gm-gray-700);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-pill);
    font-size: var(--font-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.btn-refresh:hover {
    background: var(--gm-gray-100);
    border-color: var(--gm-green);
    color: var(--gm-green);
    transform: translateY(-1px);
}

.btn-refresh:active {
    transform: translateY(0);
}

.btn-refresh i {
    transition: transform 0.3s ease;
}

.btn-refresh:hover i {
    transform: rotate(90deg);
}

#upcomingMeetingsList {
    display: grid;
    gap: var(--space-4);
}

/* Meeting Cards - Premium Design */
.meeting-card {
    background: var(--gm-surface);
    border: 2px solid var(--gm-gray-300);
    border-left: 6px solid var(--gm-green);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    overflow: hidden;
    box-shadow: var(--elevation-1);
}

.meeting-card:hover {
    box-shadow: var(--elevation-3);
    transform: translateY(-4px);
    border-left-color: var(--gm-green-dark);
    border-color: var(--gm-green);
}

.meeting-card .card-body {
    padding: var(--space-6);
}

.meeting-card .card-title {
    color: var(--gm-gray-900);
    font-size: var(--font-lg);
    font-weight: 600;
    margin: 0 0 var(--space-4) 0;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.meeting-card-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.meeting-card .card-text {
    color: var(--gm-gray-700);
    font-size: var(--font-base);
    line-height: 1.6;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.meeting-card .card-text i {
    color: var(--gm-green);
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.meeting-card-actions {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1.5px solid var(--gm-gray-200);
}

.meeting-card .btn {
    flex: 1;
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-pill);
    font-size: var(--font-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.meeting-card .btn-success {
    background: var(--gm-green);
    color: var(--gm-surface);
    box-shadow: var(--elevation-1);
}

.meeting-card .btn-success:hover {
    background: var(--gm-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--elevation-2);
}

.meeting-card .btn-success:active {
    transform: translateY(0);
}

.meeting-card .btn-outline-secondary {
    background: var(--gm-surface);
    border: 2px solid var(--gm-gray-300);
    color: var(--gm-gray-700);
    padding: calc(var(--space-2) - 2px) calc(var(--space-5) - 2px);
}

.meeting-card .btn-outline-secondary:hover {
    background: var(--gm-gray-100);
    border-color: var(--gm-gray-600);
    transform: translateY(-1px);
}

.meeting-card .btn-outline-secondary:active {
    transform: translateY(0);
}

.meeting-card .btn-outline-danger {
    background: var(--gm-surface);
    border: 2px solid var(--gm-red);
    color: var(--gm-red);
    padding: calc(var(--space-2) - 2px) calc(var(--space-5) - 2px);
}

.meeting-card .btn-outline-danger:hover {
    background: var(--gm-red);
    color: var(--gm-surface);
    transform: translateY(-1px);
    box-shadow: var(--elevation-2);
}

.meeting-card .btn-outline-danger:active {
    transform: translateY(0);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-5);
    background: var(--gm-gray-100);
    border-radius: var(--radius-md);
    border: 2px dashed var(--gm-gray-300);
}

.empty-state i {
    font-size: 64px;
    color: var(--gm-gray-300);
    margin-bottom: var(--space-5);
    opacity: 0.6;
}

.empty-state p {
    color: var(--gm-gray-700);
    font-size: var(--font-md);
    margin: 0 0 var(--space-5) 0;
}

.empty-state .btn {
    background: var(--gm-green);
    color: var(--gm-surface);
    border: none;
    padding: var(--space-3) var(--space-8);
    border-radius: var(--radius-pill);
    font-size: var(--font-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--elevation-2);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.empty-state .btn:hover {
    background: var(--gm-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--elevation-3);
}

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

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

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

.meeting-card {
    animation: fadeIn 0.3s ease backwards;
}

.meeting-card:nth-child(1) { animation-delay: 0.05s; }
.meeting-card:nth-child(2) { animation-delay: 0.1s; }
.meeting-card:nth-child(3) { animation-delay: 0.15s; }
.meeting-card:nth-child(4) { animation-delay: 0.2s; }
.meeting-card:nth-child(5) { animation-delay: 0.25s; }

/* ========================================
   LOADING STATES
======================================== */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--gm-surface);
    animation: spin 0.6s linear infinite;
}

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

.spinner-border {
    width: 18px;
    height: 18px;
    border-width: 2px;
}

/* ========================================
   NOTIFICATIONS & TOASTS
======================================== */
.gmeet-notification {
    position: fixed;
    top: var(--space-6);
    right: var(--space-6);
    padding: var(--space-4) var(--space-6);
    background: var(--gm-surface);
    border-left: 4px solid var(--gm-green);
    border-radius: var(--radius-sm);
    box-shadow: var(--elevation-4);
    z-index: var(--z-tooltip);
    max-width: 400px;
    animation: slideInRight 0.3s ease-out;
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.gmeet-notification.success {
    border-left-color: var(--gm-green);
}

.gmeet-notification.error {
    border-left-color: var(--gm-red);
}

.gmeet-notification i {
    font-size: var(--font-lg);
    color: var(--gm-green);
}

.gmeet-notification.error i {
    color: var(--gm-red);
}

@keyframes slideInRight {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ========================================
   RESPONSIVE DESIGN
======================================== */
@media (max-width: 1024px) {
    :root {
        --font-3xl: 26px;
        --font-4xl: 30px;
    }

    .hero-content {
        grid-template-columns: 1fr;
    }

    .hero-right {
        display: none;
    }

    .form-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --space-6: 20px;
        --space-8: 24px;
        --font-2xl: 22px;
        --font-3xl: 24px;
    }

    .google-meet-header {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
        padding: var(--space-5) var(--space-6);
    }

    .google-meet-header h3 {
        font-size: var(--font-2xl);
    }

    .google-meet-header-actions {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    .google-meet-hero {
        padding: var(--space-6) var(--space-5);
    }

    .hero-left h2 {
        font-size: var(--font-3xl);
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn-hero-primary,
    .btn-hero-secondary {
        width: 100%;
        justify-content: center;
    }

    .meeting-scheduler {
        padding: var(--space-6) var(--space-5);
    }

    .meeting-card-actions {
        flex-direction: column;
    }

    .meeting-card .btn {
        width: 100%;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn,
    .form-actions .btn-outline-secondary {
        width: 100%;
    }

    .upcoming-meetings-header {
        flex-direction: column;
        gap: var(--space-3);
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    :root {
        --space-5: 16px;
        --space-6: 18px;
        --space-8: 20px;
        --font-2xl: 20px;
    }

    .google-meet-header h3 {
        font-size: var(--font-xl);
    }

    .hero-left h2 {
        font-size: var(--font-2xl);
    }

    .meeting-scheduler h4,
    .upcoming-meetings h4 {
        font-size: var(--font-lg);
    }

    #google-status-badge {
        font-size: var(--font-xs);
        padding: var(--space-1) var(--space-3);
    }

    .meeting-card .card-body {
        padding: var(--space-5);
    }
}

/* ========================================
   ACCESSIBILITY ENHANCEMENTS
======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 3px solid var(--gm-green);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--gm-green);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .google-meet-header {
        border: 2px solid currentColor;
    }

    .meeting-card {
        border: 3px solid currentColor;
    }
}

/* ========================================
   UTILITY CLASSES
======================================== */
.text-center {
    text-align: center;
}

.d-flex {
    display: flex;
}

.justify-content-between {
    justify-content: space-between;
}

.align-items-center {
    align-items: center;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ========================================
   PRINT STYLES
======================================== */
@media print {
    .google-meet-header,
    .google-connect-card,
    .google-meet-hero,
    .btn,
    button {
        display: none !important;
    }

    .meeting-card {
        break-inside: avoid;
        page-break-inside: avoid;
        border: 1px solid #000;
        box-shadow: none;
    }
}