/* ==========================================================================
   Hapood.fr - Global Styles — Réseau social nutrition
   Mobile-first, performance-optimized CSS
   ========================================================================== */

/* ---------- CSS Custom Properties ---------- */
:root {
    --color-primary: #6C63FF;
    --color-primary-dark: #5A52D5;
    --color-primary-light: #EEF0FF;
    --color-secondary: #FF6B6B;
    --color-accent: #4ECDC4;
    --color-text: #2D3436;
    --color-text-light: #636E72;
    --color-text-muted: #A0A6AB;
    --color-bg: #FFFFFF;
    --color-bg-alt: #F8F9FA;
    --color-bg-dark: #1A1A2E;
    --color-border: #E9ECEF;
    --color-success: #00B894;
    --color-warning: #FDCB6E;
    --color-error: #E17055;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3rem;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12);
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --container-max: 1200px;
    --header-height: 72px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; font-size: 16px; }
body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-primary-dark); }
ul, ol { list-style: none; }

/* ---------- Accessibility ---------- */
.skip-link { position: absolute; top: -100%; left: 0; background: var(--color-primary); color: white; padding: var(--spacing-sm) var(--spacing-md); z-index: 1000; font-weight: 600; }
.skip-link:focus { top: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0; }

/* ---------- Container ---------- */
.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 var(--spacing-md); }
@media (min-width: 768px) { .container { padding: 0 var(--spacing-xl); } }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem; border-radius: var(--radius-md); font-family: var(--font-family);
    font-size: var(--font-size-base); font-weight: 600; line-height: 1; cursor: pointer;
    border: 2px solid transparent; transition: all var(--transition-base); white-space: nowrap; text-decoration: none;
}
.btn-primary { background-color: var(--color-primary); color: white; border-color: var(--color-primary); }
.btn-primary:hover { background-color: var(--color-primary-dark); border-color: var(--color-primary-dark); color: white; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-secondary { background-color: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-secondary:hover { background-color: var(--color-primary); color: white; }
.btn-outline { background-color: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background-color: var(--color-primary); color: white; }
.btn-white { background-color: white; color: var(--color-primary); border-color: white; }
.btn-white:hover { background-color: var(--color-primary-light); color: var(--color-primary-dark); }
.btn-large { padding: 1rem 2rem; font-size: var(--font-size-md); }
.text-link { display: inline-flex; align-items: center; gap: var(--spacing-xs); font-weight: 600; color: var(--color-primary); transition: gap var(--transition-base); }
.text-link:hover { gap: var(--spacing-sm); }

/* ---------- Header / Navigation ---------- */
.site-header { position: sticky; top: 0; z-index: 100; background-color: rgba(255,255,255,0.95); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--color-border); height: var(--header-height); }
.navbar { height: 100%; }
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: var(--spacing-xl); }
.logo { display: flex; align-items: center; text-decoration: none; flex-shrink: 0; }
.logo-text { font-size: var(--font-size-xl); font-weight: 800; color: var(--color-primary); letter-spacing: -0.02em; }
.nav-toggle { display: flex; flex-direction: column; justify-content: center; gap: 5px; width: 32px; height: 32px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger, .hamburger::before, .hamburger::after { display: block; width: 24px; height: 2px; background-color: var(--color-text); border-radius: 2px; transition: all var(--transition-base); }
.hamburger { position: relative; }
.hamburger::before, .hamburger::after { content: ''; position: absolute; }
.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }
.nav-toggle[aria-expanded="true"] .hamburger { background-color: transparent; }
.nav-toggle[aria-expanded="true"] .hamburger::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .hamburger::after { top: 0; transform: rotate(-45deg); }
.nav-menu { display: none; position: absolute; top: var(--header-height); left: 0; right: 0; background: white; border-bottom: 1px solid var(--color-border); padding: var(--spacing-md); box-shadow: var(--shadow-lg); }
.nav-menu.active { display: flex; flex-direction: column; gap: var(--spacing-xs); }
.nav-link { display: block; padding: var(--spacing-sm) var(--spacing-md); color: var(--color-text); font-weight: 500; border-radius: var(--radius-sm); transition: background-color var(--transition-fast); }
.nav-link:hover, .nav-link.active { color: var(--color-primary); background-color: var(--color-primary-light); }
.nav-actions { display: none; }
@media (min-width: 1024px) {
    .nav-toggle { display: none; }
    .nav-menu { display: flex; position: static; flex-direction: row; align-items: center; gap: var(--spacing-xs); background: none; border: none; padding: 0; box-shadow: none; }
    .nav-link { padding: var(--spacing-sm) var(--spacing-md); font-size: var(--font-size-sm); }
    .nav-actions { display: flex; gap: var(--spacing-sm); flex-shrink: 0; }
    .nav-actions .btn { padding: 0.5rem 1rem; font-size: var(--font-size-sm); }
}

/* ---------- Hero Section ---------- */
.hero { padding: var(--spacing-3xl) 0; background: linear-gradient(135deg, var(--color-primary-light) 0%, white 100%); }
.hero .container { display: grid; gap: var(--spacing-2xl); align-items: center; }
.hero h1 { font-size: var(--font-size-2xl); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; color: var(--color-text); }
.hero .highlight { color: var(--color-primary); }
.hero-subtitle { margin-top: var(--spacing-md); font-size: var(--font-size-md); color: var(--color-text-light); line-height: 1.7; max-width: 560px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: var(--spacing-md); margin-top: var(--spacing-xl); }
.hero-stats { display: flex; gap: var(--spacing-xl); margin-top: var(--spacing-2xl); padding-top: var(--spacing-xl); border-top: 1px solid var(--color-border); }
.stat { display: flex; flex-direction: column; }
.stat-number { font-size: var(--font-size-xl); font-weight: 800; color: var(--color-primary); }
.stat-label { font-size: var(--font-size-sm); color: var(--color-text-light); }
.hero-visual { display: none; }
@media (min-width: 768px) {
    .hero { padding: var(--spacing-4xl) 0; }
    .hero h1 { font-size: var(--font-size-3xl); }
    .hero-visual { display: flex; justify-content: center; align-items: center; }
    .hero .container { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) { .hero h1 { font-size: var(--font-size-4xl); } }

/* ---------- Phone Mockup ---------- */
.hero-mockup { perspective: 1000px; }
.mockup-phone {
    width: 260px; height: 480px; background: #1a1a2e; border-radius: 32px;
    padding: 12px; box-shadow: 0 20px 60px rgba(108,99,255,0.25), 0 0 0 2px rgba(108,99,255,0.1);
    transform: rotateY(-5deg) rotateX(2deg);
    transition: transform var(--transition-slow);
}
.mockup-phone:hover { transform: rotateY(0deg) rotateX(0deg); }
.mockup-screen {
    width: 100%; height: 100%; background: white; border-radius: 22px;
    overflow: hidden; display: flex; flex-direction: column; padding: 16px;
}
.mockup-post { display: flex; gap: 10px; margin-bottom: 12px; align-items: center; }
.mockup-avatar { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); flex-shrink: 0; }
.mockup-content { flex: 1; }
.mockup-line { height: 8px; border-radius: 4px; background: var(--color-border); margin-bottom: 6px; }
.mockup-line.w60 { width: 60%; }
.mockup-line.w40 { width: 40%; }
.mockup-image { flex: 1; border-radius: 12px; background: linear-gradient(135deg, #FFE0B2, #FFCC80, #FFB74D); min-height: 200px; }
.mockup-actions { display: flex; gap: 16px; padding-top: 12px; font-size: 20px; }

/* ---------- Section Shared Styles ---------- */
section { padding: var(--spacing-3xl) 0; }
section h2 { font-size: var(--font-size-xl); font-weight: 800; text-align: center; margin-bottom: var(--spacing-md); letter-spacing: -0.01em; }
.section-intro { text-align: center; color: var(--color-text-light); max-width: 640px; margin: 0 auto var(--spacing-2xl); font-size: var(--font-size-md); }
.section-cta { text-align: center; margin-top: var(--spacing-2xl); }
@media (min-width: 768px) { section { padding: var(--spacing-4xl) 0; } section h2 { font-size: var(--font-size-2xl); } }

/* ---------- How it Works ---------- */
.how-it-works { background-color: var(--color-bg-alt); }
.steps-grid { display: grid; gap: var(--spacing-xl); }
.step-card { text-align: center; padding: var(--spacing-xl); background: white; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); transition: transform var(--transition-base), box-shadow var(--transition-base); }
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.step-icon { margin-bottom: var(--spacing-md); }
.step-card h3 { font-size: var(--font-size-lg); font-weight: 700; margin-bottom: var(--spacing-sm); }
.step-card p { color: var(--color-text-light); line-height: 1.7; }
@media (min-width: 768px) { .steps-grid { grid-template-columns: repeat(3, 1fr); } }

/* ---------- Benefits ---------- */
.benefits-grid { display: grid; gap: var(--spacing-xl); }
.benefit-card { padding: var(--spacing-xl); border-radius: var(--radius-lg); border: 1px solid var(--color-border); transition: all var(--transition-base); }
.benefit-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.benefit-icon { margin-bottom: var(--spacing-md); width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; background-color: var(--color-primary-light); border-radius: var(--radius-md); }
.benefit-card h3 { font-size: var(--font-size-md); font-weight: 700; margin-bottom: var(--spacing-sm); }
.benefit-card p { color: var(--color-text-light); line-height: 1.7; }
@media (min-width: 768px) { .benefits-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .benefits-grid { grid-template-columns: repeat(3, 1fr); } }

/* ---------- Featured Listings / Recipes ---------- */
.featured-listings { background-color: var(--color-bg-alt); }
.listings-grid { display: grid; gap: var(--spacing-xl); }
.listing-card { background: white; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: all var(--transition-base); }
.listing-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.listing-link { text-decoration: none; color: inherit; display: block; }
.listing-image { position: relative; aspect-ratio: 16/10; background-color: var(--color-bg-alt); overflow: hidden; }
.listing-image img { width: 100%; height: 100%; object-fit: cover; }
.listing-badge { position: absolute; top: var(--spacing-sm); left: var(--spacing-sm); padding: 4px 10px; background-color: var(--color-primary); color: white; font-size: var(--font-size-xs); font-weight: 600; border-radius: var(--radius-full); }
.listing-info { padding: var(--spacing-lg); }
.listing-info h3 { font-size: var(--font-size-md); font-weight: 700; margin-bottom: var(--spacing-xs); }
.listing-location { font-size: var(--font-size-sm); color: var(--color-text-light); margin-bottom: var(--spacing-sm); }
.listing-details { display: flex; gap: var(--spacing-md); font-size: var(--font-size-sm); color: var(--color-text-muted); margin-bottom: var(--spacing-md); flex-wrap: wrap; }
.listing-footer { display: flex; justify-content: space-between; align-items: center; padding-top: var(--spacing-md); border-top: 1px solid var(--color-border); }
.listing-price { font-size: var(--font-size-sm); color: var(--color-text); }
.listing-price strong { font-size: var(--font-size-lg); font-weight: 800; color: var(--color-primary); }
.listing-dates { font-size: var(--font-size-sm); color: var(--color-text-light); }
@media (min-width: 768px) { .listings-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .listings-grid { grid-template-columns: repeat(3, 1fr); } }

/* ---------- SEO Content ---------- */
.seo-content { background-color: white; }
.content-columns { display: grid; gap: var(--spacing-xl); margin-bottom: var(--spacing-2xl); }
.content-block h3 { font-size: var(--font-size-lg); font-weight: 700; margin-bottom: var(--spacing-md); text-align: left; }
.content-block p { color: var(--color-text-light); line-height: 1.8; margin-bottom: var(--spacing-md); }
.content-block .text-link { margin-top: var(--spacing-sm); }
@media (min-width: 768px) { .content-columns { grid-template-columns: 1fr 1fr; } }

/* ---------- Testimonials ---------- */
.testimonials { background-color: var(--color-bg-alt); }
.testimonials-grid { display: grid; gap: var(--spacing-xl); }
.testimonial-card { background: white; padding: var(--spacing-xl); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: none; }
.testimonial-stars { color: #FFC107; font-size: var(--font-size-lg); margin-bottom: var(--spacing-md); }
.testimonial-card p { color: var(--color-text); line-height: 1.7; font-style: italic; margin-bottom: var(--spacing-lg); }
.testimonial-card footer { display: flex; flex-direction: column; gap: 2px; }
.testimonial-card cite { font-weight: 700; font-style: normal; color: var(--color-text); }
.testimonial-card footer span { font-size: var(--font-size-sm); color: var(--color-text-light); }
@media (min-width: 768px) { .testimonials-grid { grid-template-columns: repeat(3, 1fr); } }

/* ---------- CTA Section ---------- */
.cta-section { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color: white; text-align: center; }
.cta-section h2 { color: white; font-size: var(--font-size-2xl); }
.cta-section p { color: rgba(255,255,255,0.85); font-size: var(--font-size-md); max-width: 540px; margin: var(--spacing-md) auto var(--spacing-xl); }
.cta-buttons { display: flex; justify-content: center; gap: var(--spacing-md); flex-wrap: wrap; }

/* ---------- FAQ Section ---------- */
.faq-section { background-color: white; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: var(--spacing-md); overflow: hidden; transition: border-color var(--transition-fast); }
.faq-item[open] { border-color: var(--color-primary); }
.faq-item summary { padding: var(--spacing-lg); font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; list-style: none; user-select: none; transition: color var(--transition-fast); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: var(--font-size-xl); font-weight: 300; color: var(--color-primary); transition: transform var(--transition-base); flex-shrink: 0; margin-left: var(--spacing-md); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item[open] summary { color: var(--color-primary); }
.faq-answer { padding: 0 var(--spacing-lg) var(--spacing-lg); }
.faq-answer p { color: var(--color-text-light); line-height: 1.8; }

/* ---------- Footer ---------- */
.site-footer { background-color: var(--color-bg-dark); color: rgba(255,255,255,0.7); padding: var(--spacing-3xl) 0 var(--spacing-xl); }
.footer-grid { display: grid; gap: var(--spacing-2xl); }
.footer-brand .logo-text { color: white; }
.footer-brand p { margin-top: var(--spacing-md); font-size: var(--font-size-sm); line-height: 1.7; max-width: 300px; }
.footer-nav h4 { color: white; font-size: var(--font-size-sm); font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: var(--spacing-md); }
.footer-nav ul { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.footer-nav a { color: rgba(255,255,255,0.6); font-size: var(--font-size-sm); transition: color var(--transition-fast); }
.footer-nav a:hover { color: white; }
.footer-bottom { margin-top: var(--spacing-2xl); padding-top: var(--spacing-xl); border-top: 1px solid rgba(255,255,255,0.1); text-align: center; font-size: var(--font-size-sm); }
@media (min-width: 768px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr; } }

/* ---------- Generic Page Styles ---------- */
.page-header { background: linear-gradient(135deg, var(--color-primary-light) 0%, white 100%); padding: var(--spacing-3xl) 0 var(--spacing-2xl); text-align: center; }
.page-header h1 { font-size: var(--font-size-2xl); font-weight: 800; margin-bottom: var(--spacing-md); }
.page-header p { color: var(--color-text-light); font-size: var(--font-size-md); max-width: 640px; margin: 0 auto; }
@media (min-width: 768px) { .page-header { padding: var(--spacing-4xl) 0 var(--spacing-3xl); } .page-header h1 { font-size: var(--font-size-3xl); } }
.page-content { padding: var(--spacing-3xl) 0; }
.page-content .container { max-width: 800px; }
.page-content h2 { text-align: left; font-size: var(--font-size-xl); margin-top: var(--spacing-2xl); margin-bottom: var(--spacing-md); }
.page-content h3 { font-size: var(--font-size-lg); margin-top: var(--spacing-xl); margin-bottom: var(--spacing-sm); }
.page-content p { color: var(--color-text-light); line-height: 1.8; margin-bottom: var(--spacing-md); }
.page-content ul, .page-content ol { margin-bottom: var(--spacing-md); padding-left: var(--spacing-xl); }
.page-content ul { list-style: disc; }
.page-content ol { list-style: decimal; }
.page-content li { color: var(--color-text-light); line-height: 1.7; margin-bottom: var(--spacing-sm); }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs { padding: var(--spacing-md) 0; font-size: var(--font-size-sm); color: var(--color-text-muted); }
.breadcrumbs a { color: var(--color-text-light); }
.breadcrumbs span { margin: 0 var(--spacing-sm); }

/* ---------- Contact Form ---------- */
.contact-form { max-width: 600px; margin: 0 auto; }
.form-group { margin-bottom: var(--spacing-lg); }
.form-group label { display: block; font-weight: 600; margin-bottom: var(--spacing-xs); font-size: var(--font-size-sm); }
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 0.75rem 1rem; border: 1px solid var(--color-border); border-radius: var(--radius-md);
    font-family: var(--font-family); font-size: var(--font-size-base); color: var(--color-text); transition: border-color var(--transition-fast);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(108,99,255,0.1); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* ---------- Animations ---------- */
@media (prefers-reduced-motion: no-preference) {
    .benefit-card, .listing-card, .step-card, .testimonial-card { opacity: 0; transform: translateY(20px); transition: opacity 0.5s ease, transform 0.5s ease; }
    .benefit-card.visible, .listing-card.visible, .step-card.visible, .testimonial-card.visible { opacity: 1; transform: translateY(0); }
}

/* ---------- Print Styles ---------- */
@media print { .site-header, .site-footer, .nav-actions, .cta-section { display: none; } body { color: black; background: white; } }