/* ============================================
   Modern UI Design for MiroTalk Landing Page
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --hero-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --accent-purple: #667eea;
    --accent-pink: #f093fb;
    --accent-blue: #4facfe;
    --dark-bg: #0a0e27;
    --dark-bg-secondary: #141937;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #b8c1ec;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Animation */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* Modern Body Styles */
body {
    background: var(--dark-bg);
    background-image:
        radial-gradient(at 0% 0%, rgba(102, 126, 234, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(240, 147, 251, 0.1) 0px, transparent 50%);
    color: var(--text-secondary);
    overflow-x: hidden;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 120%;
    height: 200%;
    background: var(--hero-gradient);
    opacity: 0.15;
    border-radius: 50%;
    filter: blur(80px);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    33% {
        transform: translate(30px, -30px) rotate(5deg);
    }

    66% {
        transform: translate(-20px, 20px) rotate(-5deg);
    }
}

/* Centered Hero Content */
.hero-content-centered {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #667eea 50%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.3;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
    box-shadow:
        0 20px 40px rgba(102, 126, 234, 0.2),
        0 0 0 1px rgba(255, 255, 255, 0.1);
}

/* CTA Section */
.cta-inner {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.cta-inner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
    z-index: 0;
}

.cta-slogan,
.cta-action {
    position: relative;
    z-index: 1;
}

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

    to {
        transform: rotate(360deg);
    }
}

/* Modern Buttons */
.button-primary {
    background: var(--primary-gradient);
    color: var(--text-primary);
    border: none;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.button-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.button-primary:hover::before {
    left: 100%;
}

.button-primary:hover {
    transform: translateY(-2px);
    box-shadow:
        0 8px 25px rgba(102, 126, 234, 0.4),
        0 0 20px rgba(102, 126, 234, 0.3);
}

.button-primary:active {
    transform: translateY(0);
}

/* Form Inputs */
.form-input {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 14px 20px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-purple);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.form-input::placeholder {
    color: rgba(184, 193, 236, 0.5);
}

/* Ensure buttons and inputs are clickable */
.cta-action button,
.cta-action input,
.cta-action a {
    position: relative;
    z-index: 2;
}

#genRoomButton,
#joinRoomButton,
#customizeRoomButton {
    position: relative;
    z-index: 2;
}

.form-group-desktop {
    position: relative;
    z-index: 2;
}

#lastRoom {
    position: relative;
    z-index: 2;
    cursor: pointer;
}

/* Refresh Button Styling */
#genRoomButton {
    min-width: 48px !important;
    min-height: 48px !important;
    width: 48px;
    height: 48px;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex-shrink: 0;
    margin-right: 8px !important;
}

#genRoomButton i {
    font-size: 1.1rem;
    color: var(--text-primary);
}

/* Feature Tiles */
.tiles-item {
    transition: all var(--transition-normal);
}

.tiles-item-inner {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    height: 100%;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.tiles-item-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.tiles-item:hover .tiles-item-inner::before {
    transform: scaleX(1);
}

.tiles-item:hover .tiles-item-inner {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-10px) scale(1.02);
    box-shadow:
        0 20px 40px rgba(102, 126, 234, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.1);
}

.features-tiles-item-image {
    transition: transform var(--transition-normal);
}

.tiles-item:hover .features-tiles-item-image {
    transform: scale(1.1) rotate(5deg);
}

/* Section Headers */
.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    background: linear-gradient(135deg, #fff 0%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

/* Sponsor/Client Logos */
.clients-logo {
    transition: all var(--transition-normal);
    filter: grayscale(100%) brightness(0.8);
}

.clients-logo:hover {
    filter: grayscale(0%) brightness(1.2);
    transform: scale(1.1);
}

/* Footer */
.site-footer {
    background: var(--dark-bg-secondary);
    border-top: 1px solid var(--glass-border);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-brand-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-normal);
    position: relative;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width var(--transition-normal);
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-links a:hover::after {
    width: 100%;
}

.footer-copyright {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Responsive Footer */
@media (max-width: 768px) {
    .site-footer {
        padding: var(--spacing-md) 0;
    }

    .footer-links {
        gap: var(--spacing-md);
    }
}

/* Scroll Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal-from-bottom.is-revealed {
    animation: fadeInUp 0.8s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        padding: 80px 0 60px;
    }

    .cta-inner {
        padding: var(--spacing-lg);
    }

    .tiles-item-inner {
        padding: var(--spacing-lg);
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

/* Glow Effects */
.glow {
    position: relative;
}

.glow::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.4) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
    z-index: -1;
}

.glow:hover::after {
    opacity: 1;
}

/* Divider Styles */
.has-top-divider {
    position: relative;
}

.has-top-divider::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

/* Text Utilities */
.text-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Loading Animation */
@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}