/* ===================================
   Giro Website - Modern Styles
   ================================ */

/* === CSS Variables === */
:root {
    /* Giro Brand Colors - FLAT ONLY (No Gradients) */
    --color-teal: #00A0B0;
    --color-pink: #E91E63;
    --color-yellow: #FFD54F;
    --color-dark: #2C3E50;

    /* Neutrals */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    --font-size-7xl: 4.5rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Reset & Base Styles === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-900);
    background-color: var(--color-white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-base);
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: all var(--transition-base);
}

/* === Container === */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.brand-logo {
    height: 40px;
    width: auto;
}

.brand-text {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-dark);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    font-weight: 500;
    color: var(--color-gray-700);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    text-decoration: none;
}

.nav-link:hover {
    color: var(--color-teal);
    background-color: var(--color-gray-50);
}

.nav-cta {
    background: var(--color-teal);
    color: var(--color-white) !important;
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-weight: 600;
}

.nav-cta:hover {
    background: var(--color-pink);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger span {
    width: 24px;
    height: 2px;
    background-color: var(--color-gray-700);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* === Hero Section === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-video-element {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 160, 176, 0.75);
    z-index: -1;
}

.hero-container {
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: center;
    color: var(--color-white);
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
}

.gradient-text {
    color: var(--color-white);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    font-weight: 300;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-white);
    color: var(--color-teal);
    box-shadow: var(--shadow-xl);
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: var(--font-size-lg);
}

.btn-icon {
    width: 20px;
    height: 20px;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-3xl);
    justify-content: center;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    font-weight: 500;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-white);
    opacity: 0.7;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    margin: 0 auto var(--spacing-xs);
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 0; top: 8px; }
    50% { opacity: 1; top: 16px; }
}

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

/* === Animation Classes === */
.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.animation-delay-1 {
    animation-delay: 0.2s;
}

.animation-delay-2 {
    animation-delay: 0.4s;
}

.animation-delay-3 {
    animation-delay: 0.6s;
}

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

/* === Section Styles === */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-gray-600);
    font-weight: 300;
}

/* === Features Section === */
.features {
    background: var(--color-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
}

.feature-icon-teal {
    background: var(--color-teal);
    color: var(--color-white);
}

.feature-icon-pink {
    background: var(--color-pink);
    color: var(--color-white);
}

.feature-icon-yellow {
    background: var(--color-yellow);
    color: var(--color-dark);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* === How It Works === */
.how-it-works {
    background-color: var(--color-white);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

.step {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--spacing-xl);
    align-items: center;
}

.step-reverse {
    grid-template-columns: auto auto 1fr;
}

.step-reverse .step-content {
    order: 3;
}

.step-reverse .step-image {
    order: 2;
}

.step-number {
    font-size: var(--font-size-6xl);
    font-weight: 900;
    background: var(--color-teal);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.3;
}

.step-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.step-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: 1.8;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: var(--color-dark);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-2xl);
    position: relative;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background-color: var(--color-white);
    border-radius: 32px;
    overflow: hidden;
}

.mockup-content {
    padding: var(--spacing-lg);
}

.mockup-header {
    height: 60px;
    background: var(--color-teal);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-lg);
}

.mockup-card {
    height: 120px;
    background-color: var(--color-gray-100);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-lg);
}

.mockup-map {
    height: 300px;
    background: var(--color-teal);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
}

.mockup-player {
    height: 100px;
    background-color: var(--color-gray-800);
    border-radius: var(--radius-lg);
}

.mockup-share {
    height: 200px;
    background-color: var(--color-gray-100);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-lg);
}

.mockup-qr {
    height: 200px;
    background: var(--color-teal);
    border-radius: var(--radius-lg);
}

/* === App Preview === */
.app-preview {
    background: var(--color-gray-50);
    overflow: hidden;
}

.preview-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.preview-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.preview-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.preview-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.preview-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 500;
}

.preview-features svg {
    width: 24px;
    height: 24px;
    color: var(--color-teal);
    flex-shrink: 0;
}

.preview-phones {
    position: relative;
    height: 600px;
}

.phone-showcase {
    position: absolute;
    width: 260px;
    height: 520px;
    background: var(--color-dark);
    border-radius: 36px;
    padding: 10px;
    box-shadow: var(--shadow-2xl);
    transition: all var(--transition-slow);
}

.phone-showcase img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 28px;
}

.phone-showcase.placeholder {
    background: var(--color-teal);
}

.phone-1 {
    top: 0;
    left: 0;
    z-index: 3;
}

.phone-2 {
    top: 40px;
    left: 140px;
    z-index: 2;
    opacity: 0.9;
}

.phone-3 {
    top: 80px;
    left: 280px;
    z-index: 1;
    opacity: 0.7;
}

.phone-showcase:hover {
    transform: translateY(-10px) scale(1.05);
    z-index: 10;
    opacity: 1;
}

/* === Download Section === */
.download {
    background: var(--color-teal);
    color: var(--color-white);
    text-align: center;
}

.download-title {
    font-size: var(--font-size-5xl);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
}

.download-subtitle {
    font-size: var(--font-size-xl);
    opacity: 0.95;
    margin-bottom: var(--spacing-xl);
    font-weight: 300;
}

.download-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.store-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-white);
    color: var(--color-gray-900);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-base);
}

.store-button:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.store-icon {
    width: 36px;
    height: 36px;
}

.store-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.store-label {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.7;
}

.store-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.download-note {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

/* === Footer === */
.footer {
    background-color: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.footer-logo {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    background: var(--color-teal);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    margin-bottom: var(--spacing-lg);
    opacity: 0.8;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--color-gray-800);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--color-teal);
    transform: translateY(-2px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    opacity: 0.8;
    transition: all var(--transition-base);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-teal);
    padding-left: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-800);
}

.footer-copyright {
    font-size: var(--font-size-sm);
    opacity: 0.6;
}

/* === Back to Top === */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: var(--color-teal);
    color: var(--color-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: all;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* === Back to Top Button === */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: var(--color-teal);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    font-size: var(--font-size-xl);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 999;
    box-shadow: 0 4px 20px rgba(20, 184, 166, 0.3);
}

.back-to-top:hover {
    background: var(--color-teal);
    transform: translateY(0) scale(1.1);
    box-shadow: 0 6px 30px rgba(20, 184, 166, 0.5);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* === Navbar Scrolled State === */
.navbar.scrolled {
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* === Loaded State for Page Animations === */
body.loaded .fade-up {
    animation: fadeUp 0.8s ease-out forwards;
}

/* === Responsive === */
@media (max-width: 1024px) {
    .hero-title {
        font-size: var(--font-size-5xl);
    }

    .section-title {
        font-size: var(--font-size-4xl);
    }

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

    .preview-phones {
        margin: 0 auto;
    }

    .step {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .step {
        grid-template-columns: 1fr;
    }

    .step-reverse {
        grid-template-columns: 1fr;
    }

    .step-number {
        order: 1;
    }

    .step-content {
        order: 2;
    }

    .step-image {
        order: 3;
        margin: 0 auto;
    }

    /* For step-reverse on tablet, keep text above image */
    .step-reverse .step-content {
        order: 2;
    }

    .step-reverse .step-image {
        order: 3;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .nav-menu.active {
        display: flex;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        padding: var(--spacing-lg);
        gap: var(--spacing-sm);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        animation: slideDown 0.3s ease-out;
        z-index: 999;
    }

    .nav-link {
        width: 100%;
        text-align: center;
        padding: 1rem;
    }

    .nav-cta {
        margin-top: var(--spacing-sm);
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .btn-large {
        width: 100%;
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .hero-stats {
        flex-direction: row;
        justify-content: space-around;
        gap: var(--spacing-sm);
    }

    .stat {
        flex: 1;
    }

    .stat-number {
        font-size: var(--font-size-2xl);
    }

    .stat-label {
        font-size: var(--font-size-xs);
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .download-buttons {
        flex-direction: column;
    }

    .store-button {
        width: 100%;
        justify-content: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .phone-showcase {
        width: 200px;
        height: 400px;
    }

    .phone-2, .phone-3 {
        display: none;
    }

    .phone-1 {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    section {
        padding: var(--spacing-2xl) 0;
    }
}