/* =============================================
   VARIABLES & RESET
   ============================================= */

:root {
    /* Colors - Palette médicale sobre */
    --color-primary: #0A4D68;
    --color-primary-light: #1A6B8F;
    --color-primary-dark: #053548;
    --color-accent: #D4AF37;
    --color-accent-light: #E5C456;
    
    --color-text: #1A1A1A;
    --color-text-light: #4A4A4A;
    --color-text-muted: #6B6B6B;
    
    --color-bg: #FFFFFF;
    --color-bg-light: #F8F9FA;
    --color-bg-lighter: #FAFBFC;
    --color-border: #E0E4E8;
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

ul {
    list-style: none;
}

/* =============================================
   TYPOGRAPHY
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Source+Sans+Pro:wght@300;400;600;700&display=swap');

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
    font-size: 1.0625rem;
}

/* =============================================
   UTILITIES
   ============================================= */

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

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

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
}

.section-cta {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* =============================================
   BUTTONS
   ============================================= */

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 2px;
    font-weight: 600;
    font-size: 0.9375rem;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    letter-spacing: 0.025em;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(10, 77, 104, 0.2);
}

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

.btn-secondary:hover {
    background: var(--color-primary);
    color: white;
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.0625rem;
}

/* =============================================
   NAVIGATION
   ============================================= */

.navbar {
    background: white;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.nav-brand {
    display: flex;
    flex-direction: column;
}

.nav-brand a {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
}

.nav-subtitle {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: -0.25rem;
}

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

.nav-menu a {
    color: var(--color-text-light);
    font-weight: 500;
    font-size: 0.9375rem;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-menu a.active {
    color: var(--color-primary);
}

.nav-cta {
    background: var(--color-primary);
    color: white !important;
    padding: 0.5rem 1.25rem;
    border-radius: 2px;
}

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

.nav-cta::after {
    display: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

/* =============================================
   HERO SECTION
   ============================================= */

.hero {
    background: linear-gradient(135deg, #F8F9FA 0%, #FAFBFC 100%);
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--color-border);
}

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

.hero-subtitle {
    display: block;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    font-family: var(--font-body);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.hero-text {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.hero-contact {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-md);
}

.hero-contact svg {
    color: var(--color-primary);
}

.hero-contact a {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1.125rem;
}

.hero-contact a:hover {
    color: var(--color-primary-dark);
}

/* =============================================
   PRESENTATION SECTION
   ============================================= */

.section-presentation {
    background: white;
}

.presentation-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    margin-top: var(--spacing-lg);
}

.presentation-text {
    font-size: 1.0625rem;
}

.presentation-text p {
    margin-bottom: var(--spacing-md);
}

.link-arrow {
    color: var(--color-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.link-arrow::after {
    content: '→';
    transition: transform 0.3s ease;
}

.link-arrow:hover::after {
    transform: translateX(0.25rem);
}

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

.credential-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-bg-light);
    border-left: 3px solid var(--color-primary);
    border-radius: 2px;
}

.credential-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
}

.credential-item h3 {
    font-size: 1.0625rem;
    margin-bottom: 0.25rem;
    color: var(--color-primary);
}

.credential-item p {
    font-size: 0.9375rem;
    margin-bottom: 0;
}

/* =============================================
   EXPERTISE SECTION
   ============================================= */

.section-expertise {
    background: var(--color-bg-light);
}

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

.expertise-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 2px;
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.expertise-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.expertise-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    margin-bottom: var(--spacing-md);
}

.expertise-card h3 {
    font-size: 1.375rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.expertise-card ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.expertise-card li {
    position: relative;
    padding-left: 1.5rem;
    color: var(--color-text-light);
}

.expertise-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 1.25rem;
}

/* =============================================
   WHY CHOOSE US SECTION
   ============================================= */

.section-why {
    background: white;
}

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

.why-item {
    text-align: center;
}

.why-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.3;
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.why-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.why-item p {
    font-size: 0.9375rem;
    margin-bottom: 0;
}

/* =============================================
   CTA FINAL SECTION
   ============================================= */

.section-cta-final {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    color: white;
    font-size: clamp(2rem, 4vw, 2.75rem);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.cta-buttons .btn-primary {
    background: white;
    color: var(--color-primary);
}

.cta-buttons .btn-primary:hover {
    background: var(--color-bg-light);
    transform: translateY(-2px);
}

.cta-phone {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.cta-phone a {
    color: white;
    font-weight: 600;
    font-size: 1.125rem;
}

.cta-phone a:hover {
    color: var(--color-accent-light);
}

/* =============================================
   FOOTER
   ============================================= */

.footer {
    background: var(--color-text);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-col h4 {
    color: white;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.footer-col p {
    font-size: 0.9375rem;
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-col a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-col a:hover {
    color: var(--color-accent-light);
}

.footer-credentials {
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
    color: var(--color-accent) !important;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    font-size: 0.9375rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-bottom p {
    margin: 0;
    font-size: 0.875rem;
}

/* =============================================
   RESPONSIVE
   ============================================= */

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .presentation-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }
    
    .btn {
        width: 100%;
    }
}