/* ==========================================================================
   Anne Kulübü Landing Page Styles
   ========================================================================== */

/* CSS Variables - Apple-inspired Design System */
:root {
    /* Colors - Modern & Premium */
    --primary: #007AFF;
    --primary-hover: #0051D5;
    --primary-light: #E5F2FF;
    --accent: #5856D6;
    --accent-light: #F3F2FF;
    --success: #34C759;

    /* Neutrals - Clean & Sophisticated */
    --background: #FAFAFA;
    --background-alt: #F5F5F7;
    --card: #FFFFFF;
    --text: #1D1D1F;
    --text-secondary: #86868B;
    --text-muted: #C7C7CC;
    --border: #E5E5EA;
    --border-light: #F2F2F7;

    /* Spacing - Generous & Breathing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;

    /* Border Radius - Subtle & Modern */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-xxl: 24px;
    --radius-full: 9999px;

    /* Shadows - Soft & Elegant */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.1);

    /* Typography - Clean & Readable */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Roboto', sans-serif;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    color: var(--text);
    background-color: var(--background);
    line-height: 1.7;
    font-weight: var(--font-weight-regular);
    letter-spacing: -0.011em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

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

/* Section */
section {
    padding: var(--spacing-xxl) 0;
}

.section-title {
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--text);
    letter-spacing: -0.022em;
    line-height: 1.2;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(180deg, var(--background-alt) 0%, var(--background) 100%);
    padding: var(--spacing-xxl) 0;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.logo {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-lg);
    border-radius: var(--radius-xxl);
    box-shadow: var(--shadow-lg);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: var(--font-weight-bold);
    color: var(--text);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    letter-spacing: -0.025em;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 3vw, 1.375rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    font-weight: var(--font-weight-regular);
    line-height: 1.5;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* QR Code Section */
.qr-section {
    margin: var(--spacing-xl) 0;
}

.qr-code-wrapper {
    display: inline-block;
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-xxl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-light);
}

.qr-code {
    width: 280px;
    height: 280px;
    display: block;
}

.qr-instruction {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
}

/* Store Badges */
.store-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.store-badge {
    display: inline-block;
    transition: transform 0.3s ease;
}

.store-badge:hover {
    transform: translateY(-5px);
}

.store-badge img {
    height: 60px;
    width: auto;
}

/* ==========================================================================
   Features Section
   ========================================================================== */
.features {
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-card {
    background: var(--card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--border);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    line-height: 1;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--text);
    letter-spacing: -0.015em;
    line-height: 1.3;
}

.feature-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

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

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 56px;
    height: 56px;
    background: var(--primary);
    color: white;
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.step-title {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--text);
    letter-spacing: -0.015em;
}

.step-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ==========================================================================
   Pricing Section
   ========================================================================== */
.pricing {
    background: white;
}

.pricing-card {
    max-width: 480px;
    margin: var(--spacing-xl) auto 0;
    background: var(--card);
    padding: var(--spacing-xxl);
    border-radius: var(--radius-xxl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    border: 2px solid var(--border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pricing-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-xl);
}

.price-tag {
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
}

.currency {
    font-size: 1.75rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text);
}

.amount {
    font-size: 4rem;
    font-weight: var(--font-weight-bold);
    color: var(--text);
    line-height: 1;
    letter-spacing: -0.03em;
}

.period {
    font-size: 1.375rem;
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.pricing-features li {
    padding: var(--spacing-md) 0;
    font-size: 1rem;
    color: var(--text);
    border-bottom: 1px solid var(--border-light);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.cta-button {
    display: inline-block;
    background: var(--primary);
    color: white;
    font-size: 1.0625rem;
    font-weight: var(--font-weight-semibold);
    padding: 1rem 2.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    letter-spacing: -0.011em;
}

.cta-button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq {
    background: var(--background);
}

.faq-list {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
}

.faq-item {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-xs);
    border: 1px solid var(--border-light);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--border);
}

.faq-question {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.015em;
    line-height: 1.4;
}

.faq-answer {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: var(--background-alt);
    color: var(--text-secondary);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

.footer-content {
    text-align: center;
}

.footer-qr {
    margin-bottom: var(--spacing-lg);
}

.qr-code-small {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-sm);
    background: white;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
}

.footer-qr p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.badge-small {
    height: 45px;
    width: auto;
    transition: opacity 0.3s ease;
}

.badge-small:hover {
    opacity: 0.8;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

.footer-links a {
    color: var(--text);
    transition: color 0.2s ease;
    font-weight: var(--font-weight-medium);
}

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

.footer-links span {
    color: var(--text-muted);
}

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

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
    section {
        padding: var(--spacing-xl) 0;
    }

    .section-title {
        margin-bottom: var(--spacing-lg);
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-xxl) 0;
    }

    .logo {
        width: 100px;
        height: 100px;
    }

    .qr-code {
        width: 220px;
        height: 220px;
    }

    .store-badge img {
        height: 50px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

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

    .footer-qr {
        display: none; /* Hide QR in footer on mobile */
    }
}

@media (max-width: 480px) {
    .qr-code {
        width: 200px;
        height: 200px;
    }

    .amount {
        font-size: 3rem;
    }

    .pricing-card {
        padding: var(--spacing-lg);
    }
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
    opacity: 1 !important;
}

/* Staggered animation delays for grid items */
.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

.step:nth-child(1) { animation-delay: 0.1s; }
.step:nth-child(2) { animation-delay: 0.2s; }
.step:nth-child(3) { animation-delay: 0.3s; }
.step:nth-child(4) { animation-delay: 0.4s; }
.step:nth-child(5) { animation-delay: 0.5s; }

/* Print Styles */
@media print {
    .qr-section,
    .store-badges,
    .footer-badges {
        display: none;
    }
}