/* ==========================================================================
   Yardage Buddy Landing Page Styles
   ========================================================================== */

:root {
    /* Colors - matching app theme */
    --primary-green: #1B5E20;
    --primary-green-light: #4CAF50;
    --primary-green-dark: #0D3D12;
    --secondary-gold: #B8860B;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-light: #ffffff;
    --background: #ffffff;
    --background-alt: #f8faf8;
    --background-dark: #1a1a1a;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;

    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 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);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: 1.5rem;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.highlight {
    color: var(--primary-green);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background-color: var(--primary-green);
    color: var(--text-light);
    border-color: var(--primary-green);
}

.btn-primary:hover {
    background-color: var(--primary-green-dark);
    border-color: var(--primary-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-green);
    border-color: var(--primary-green);
}

.btn-secondary:hover {
    background-color: var(--primary-green);
    color: var(--text-light);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn .icon {
    width: 1.25em;
    height: 1.25em;
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: var(--spacing-sm) 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-green);
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links a:not(.btn) {
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.nav-links a:not(.btn):hover {
    color: var(--primary-green);
}

.nav-links .btn {
    padding: 0.5rem 1rem;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-fast);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    padding: calc(80px + var(--spacing-xxl)) 0 var(--spacing-xxl);
    background: linear-gradient(135deg, var(--background) 0%, var(--background-alt) 100%);
    overflow: hidden;
}

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

.hero-content {
    max-width: 560px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin: var(--spacing-md) 0 var(--spacing-lg);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

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

.hero-image img {
    max-width: 350px;
    filter: drop-shadow(var(--shadow-xl));
}

/* ==========================================================================
   Features Section
   ========================================================================== */

.features {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.feature-card {
    padding: var(--spacing-lg);
    background-color: var(--background);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-green-light);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(27, 94, 32, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary-green);
}

.feature-card h3 {
    margin-bottom: var(--spacing-xs);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* ==========================================================================
   How It Works Section
   ========================================================================== */

.how-it-works {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-alt);
}

.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.step {
    text-align: center;
    max-width: 280px;
}

.step-number {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-green);
    color: var(--text-light);
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin: 0 auto var(--spacing-md);
}

.step h3 {
    margin-bottom: var(--spacing-xs);
}

.step p {
    color: var(--text-secondary);
}

.step-arrow {
    display: flex;
    align-items: center;
    padding-top: 20px;
    color: var(--primary-green-light);
}

.step-arrow svg {
    width: 32px;
    height: 32px;
}

/* ==========================================================================
   Stats Section
   ========================================================================== */

.stats {
    padding: var(--spacing-xl) 0;
    background-color: var(--primary-green);
    color: var(--text-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.9375rem;
    opacity: 0.9;
}

/* ==========================================================================
   Download Section
   ========================================================================== */

.download {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background);
    text-align: center;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.store-badge {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.store-badge img {
    height: 60px;
    transition: transform var(--transition-base);
}

.store-badge:hover img {
    transform: scale(1.05);
}

.ribbon {
    position: absolute;
    top: 18px;
    right: -28px;
    background-color: var(--secondary-gold);
    color: var(--text-primary);
    font-size: 0.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 3px 32px;
    transform: rotate(45deg);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    background-color: var(--background-dark);
    color: var(--text-light);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--spacing-sm);
    max-width: 280px;
}

.footer-logo {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
}

.footer-links h3 {
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 700;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--background);
        padding: var(--spacing-md);
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        gap: var(--spacing-sm);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

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

    .hero-content {
        max-width: 100%;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        order: -1;
    }

    .hero-image img {
        max-width: 280px;
    }

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

    .steps {
        flex-direction: column;
        align-items: center;
    }

    .step-arrow {
        transform: rotate(90deg);
        padding: var(--spacing-sm) 0;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer-brand p {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }

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

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
}