/* 
   ==========================================================================
   Coupe Coupe AR — Design System & Premium Styling
   Aesthetics: Apple Premium Dark + Neon Fruit Glow (Red & Green)
   ========================================================================== 
*/

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Color Palette (HSL Tailored) */
    --bg-color: hsl(240, 12%, 4%);
    --card-bg: hsla(240, 10%, 8%, 0.6);
    --card-bg-hover: hsla(240, 10%, 12%, 0.8);
    --border-color: hsla(0, 0%, 100%, 0.07);
    --border-glow-red: hsla(354, 100%, 59%, 0.3);
    --border-glow-green: hsla(142, 76%, 45%, 0.3);
    
    --accent-red: hsl(354, 100%, 59%);
    --accent-red-glow: hsla(354, 100%, 59%, 0.12);
    --accent-green: hsl(142, 76%, 45%);
    --accent-green-glow: hsla(142, 76%, 45%, 0.12);
    
    --text-main: hsl(0, 0%, 96%);
    --text-secondary: hsl(240, 4%, 68%);
    --text-muted: hsl(240, 3%, 48%);
    
    --glass-blur: blur(20px);
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Layout */
    --max-width: 1100px;
    --header-height: 80px;
}

/* CSS Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + 20px);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    padding-top: var(--header-height);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: hsla(0, 0%, 100%, 0.15);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: hsla(0, 0%, 100%, 0.3);
}

/* Ambient Glow Backgrounds */
.glow-wrapper {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
    z-index: -2;
    pointer-events: none;
}

.glow {
    position: absolute;
    width: 80vw;
    height: 80vw;
    max-width: 800px;
    max-height: 800px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.6;
}

.glow-top-left {
    background: radial-gradient(circle, var(--accent-red-glow) 0%, rgba(0, 0, 0, 0) 70%);
    top: -200px;
    left: -200px;
}

.glow-bottom-right {
    background: radial-gradient(circle, var(--accent-green-glow) 0%, rgba(0, 0, 0, 0) 70%);
    bottom: 20%;
    right: -200px;
}

/* Global Container */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Header & Sticky Navigation */
.header-glass {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: hsla(240, 12%, 4%, 0.7);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
}

.header-glass.scrolled {
    height: 70px;
    background: hsla(240, 12%, 4%, 0.85);
    border-bottom: 1px solid hsla(0, 0%, 100%, 0.12);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

/* Logo */
.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.app-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    transition: var(--transition-smooth);
}

.logo-wrapper:hover .app-icon {
    transform: rotate(5deg) scale(1.05);
    box-shadow: 0 0 15px var(--accent-red-glow);
}

.logo-title h1 {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #ffffff 30%, #a1a1a6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navigation Links */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding: 8px 0;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-red), var(--accent-green));
    transition: var(--transition-smooth);
    border-radius: 2px;
}

.nav-link:hover {
    color: var(--text-main);
}

.nav-link:hover::after {
    width: 100%;
}

/* Language Selector */
.lang-selector {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 3px;
    gap: 2px;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 16px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.lang-btn:hover {
    color: var(--text-main);
}

.lang-btn.active {
    background: var(--accent-red);
    color: #fff;
    box-shadow: 0 2px 8px rgba(255, 59, 48, 0.4);
}

.lang-btn.active.lang-en {
    background: var(--accent-green);
    box-shadow: 0 2px 8px rgba(52, 199, 89, 0.4);
}

/* Hamburger Icon */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    z-index: 101;
}

.hamburger span {
    display: block;
    width: 26px;
    height: 2px;
    background-color: var(--text-main);
    transition: var(--transition-smooth);
    border-radius: 2px;
}

/* Mobile Nav Menu Active Classes */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: hsla(240, 12%, 4%, 0.95);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border-left: 1px solid var(--border-color);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 40px;
        transition: var(--transition-smooth);
        z-index: 99;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
}

/* Hero Section */
.hero-section {
    padding: 80px 0 120px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.hero-grid {
    display: flex;
    justify-content: center;
    width: 100%;
}

/* Hero Left Column (Content) */
.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-tag {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    background: linear-gradient(90deg, var(--accent-red), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
    padding: 6px 12px;
    background-color: hsla(0, 0%, 100%, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 20px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 40%, #86868b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    font-weight: 300;
    margin-bottom: 40px;
    max-width: 720px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: center;
    justify-content: center;
}

/* App Store Badge Button */
.badge-appstore {
    display: inline-flex;
    align-items: center;
    background: #000;
    color: #fff;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 10px 24px;
    gap: 12px;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    cursor: pointer;
}

.badge-appstore:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.35);
    box-shadow: 0 8px 30px rgba(0,0,0,0.6), 0 0 15px var(--accent-red-glow);
}

.badge-appstore svg {
    width: 28px;
    height: 28px;
    fill: #fff;
}

.badge-text-container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.badge-subtitle {
    font-size: 0.6rem;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    line-height: 1;
    margin-bottom: 2px;
}

.badge-title {
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.3px;
    line-height: 1;
}

/* Secondary Action Button */
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: hsla(0, 0%, 100%, 0.03);
    color: var(--text-main);
    text-decoration: none;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-secondary:hover {
    background: hsla(0, 0%, 100%, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Hero Right Column (Showcase Mockup) */
.hero-showcase {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mockup-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 30px;
    background: radial-gradient(circle, rgba(255, 59, 48, 0.15) 0%, rgba(52, 199, 89, 0.15) 50%, rgba(0, 0, 0, 0) 70%);
    filter: blur(40px);
    z-index: -1;
}

.mockup-container {
    width: 100%;
    max-width: 440px;
    border-radius: 28px;
    border: 1px solid hsla(0, 0%, 100%, 0.1);
    background: rgba(20, 20, 22, 0.4);
    backdrop-filter: var(--glass-blur);
    padding: 8px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
    animation: float 6s ease-in-out infinite;
}

.mockup-screen {
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mockup-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.mockup-container:hover .mockup-image {
    transform: scale(1.03);
}

/* Float Animation */
@keyframes float {
    0% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-15px) rotate(-1deg);
    }
    100% {
        transform: translateY(0px) rotate(0deg);
    }
}

/* About / Feature Grid Section */
.section-padding {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-title {
    font-size: clamp(2rem, 3.5vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 40%, #a1a1a6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* Card Styling */
.glass-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    transition: var(--transition-smooth);
}

.glass-card:hover {
    background-color: var(--card-bg-hover);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

/* About Description Box */
.about-box {
    margin-bottom: 50px;
}

.about-intro {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 300;
    margin-bottom: 30px;
    text-align: center;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.feature-card {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-card.card-red:hover {
    border-color: var(--border-glow-red);
    box-shadow: 0 15px 40px rgba(255, 59, 48, 0.08);
}

.feature-card.card-green:hover {
    border-color: var(--border-glow-green);
    box-shadow: 0 15px 40px rgba(52, 199, 89, 0.08);
}

.icon-container {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    box-shadow: inset 0 4px 10px rgba(255, 255, 255, 0.02);
    transition: var(--transition-smooth);
}

.feature-card:hover .icon-container {
    transform: scale(1.08) rotate(5deg);
}

.card-red .icon-container {
    border-color: rgba(255, 59, 48, 0.2);
    background: var(--accent-red-glow);
}

.card-red svg {
    stroke: var(--accent-red);
}

.card-green .icon-container {
    border-color: rgba(52, 199, 89, 0.2);
    background: var(--accent-green-glow);
}

.card-green svg {
    stroke: var(--accent-green);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.3px;
    color: var(--text-main);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.6;
}

/* Team / Support Section */
.team-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.team-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px 30px;
    position: relative;
    overflow: hidden;
}

.team-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-red), var(--accent-green));
    opacity: 0.8;
}

.avatar-wrapper {
    position: relative;
    margin-bottom: 24px;
}

.avatar-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-red-glow) 0%, rgba(0, 0, 0, 0) 75%);
    filter: blur(5px);
    z-index: 1;
}

.team-card:nth-child(2) .avatar-glow {
    background: radial-gradient(circle, var(--accent-green-glow) 0%, rgba(0, 0, 0, 0) 75%);
}

.avatar-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: hsla(240, 10%, 15%, 0.8);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    position: relative;
    z-index: 2;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    transition: var(--transition-smooth);
}

.team-card:hover .avatar-placeholder {
    transform: scale(1.05);
    border-color: var(--accent-red);
}

.team-card:nth-child(2):hover .avatar-placeholder {
    border-color: var(--accent-green);
}

.team-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 6px;
}

.team-role {
    font-size: 0.85rem;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--accent-red);
    margin-bottom: 20px;
}

.team-card:nth-child(2) .team-role {
    color: var(--accent-green);
}

.team-email {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 12px;
    transition: var(--transition-smooth);
}

.team-email:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.team-email svg {
    stroke: currentColor;
}

/* Accordion Privacy Policy Section */
.accordion-wrapper {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 30px;
}

.accordion-item {
    border: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.2);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.accordion-item:hover {
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.01);
}

.accordion-header {
    width: 100%;
    background: none;
    border: none;
    font-family: inherit;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    color: var(--text-main);
    font-size: 1.1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.accordion-header:hover {
    color: #fff;
}

.accordion-chevron {
    width: 20px;
    height: 20px;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    stroke: var(--text-secondary);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), padding 0.4s ease;
    padding: 0 24px;
}

.accordion-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 300;
    line-height: 1.6;
    margin-bottom: 24px;
}

/* Accordion Active States */
.accordion-item.active {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.02);
}

.accordion-item.active .accordion-chevron {
    transform: rotate(180deg);
    stroke: var(--text-main);
}

.accordion-item.active .accordion-content {
    max-height: 500px; /* high enough limit */
    padding: 0 24px 8px 24px;
}

/* Footer Section */
footer {
    border-top: 1px solid var(--border-color);
    background: hsla(240, 12%, 2%, 0.8);
    padding: 40px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

footer p {
    margin-bottom: 8px;
    font-weight: 300;
}

footer strong {
    font-weight: 500;
    color: var(--text-secondary);
}

/* Scroll Reveal Classes (JS animated) */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Language Content Display Toggles */
[data-lang-content] {
    display: none;
}

body[data-lang="fr"] [data-lang-content="fr"] {
    display: block;
}

body[data-lang="fr"] span[data-lang-content="fr"],
body[data-lang="fr"] strong[data-lang-content="fr"],
body[data-lang="fr"] h2[data-lang-content="fr"] {
    display: inline;
}

body[data-lang="en"] [data-lang-content="en"] {
    display: block;
}

body[data-lang="en"] span[data-lang-content="en"],
body[data-lang="en"] strong[data-lang-content="en"],
body[data-lang="en"] h2[data-lang-content="en"] {
    display: inline;
}

/* Responsive Breakpoints & Safe Areas */
@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
        text-align: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-showcase {
        order: -1; /* Display gameplay mockup on top for mobile */
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 500px) {
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .badge-appstore, .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .glass-card {
        padding: 30px 20px;
    }
}

/* iOS Safe Areas adaptation */
@supports (padding: env(safe-area-inset-top)) {
    .header-glass {
        padding-top: env(safe-area-inset-top);
        height: calc(var(--header-height) + env(safe-area-inset-top));
    }
    
    body {
        padding-top: calc(var(--header-height) + 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);
    }
}