/* =========================================
   LKD Health Static Site - Main CSS
   ========================================= */

/* RESET & BASE */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    /* Brand colors - match Odoo + improved */
    --color-primary: #1E5F8E;        /* Medical blue - deeper than Odoo */
    --color-primary-light: #3485B7;  /* Original Odoo blue */
    --color-primary-bg: #E8F2F8;     /* Light blue background */
    
    --color-accent: #94B83A;         /* Health green */
    --color-accent-light: #BBD852;
    
    --color-warm: #994F1C;           /* Warm brown */
    --color-warm-light: #C97A3F;
    
    /* Neutrals */
    --color-white: #ffffff;
    --color-gray-50: #FAFAFA;
    --color-gray-100: #F4F4F5;
    --color-gray-200: #E4E4E7;
    --color-gray-300: #D4D4D8;
    --color-gray-400: #A1A1AA;
    --color-gray-500: #71717A;
    --color-gray-600: #52525B;
    --color-gray-700: #3F3F46;
    --color-gray-800: #27272A;
    --color-gray-900: #18181B;
    
    /* Typography */
    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
    
    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.08);
    --shadow-xl: 0 24px 48px rgba(0,0,0,0.12);
    
    /* Transitions */
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-800);
    background: var(--color-white);
    overflow-x: hidden;
}

/* TYPOGRAPHY */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-gray-900);
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--color-warm); }

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

/* CONTAINER */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* SECTION */
section {
    padding: var(--space-20) 0;
}

@media (max-width: 768px) {
    section { padding: var(--space-12) 0; }
}

/* BUTTON */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1;
}

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

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* ========== HEADER ========== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-gray-200);
    transition: all var(--transition);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: var(--space-8);
}

.header-logo {
    flex-shrink: 0;
}
.header-logo img {
    height: 44px;
    width: auto;
}

.header-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}
.header-nav ul {
    display: flex;
    list-style: none;
    gap: var(--space-8);
}
.header-nav a {
    color: var(--color-gray-700);
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--space-2) 0;
    border-bottom: 2px solid transparent;
    transition: all var(--transition);
}
.header-nav a:hover, .header-nav a.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.lang-switcher {
    position: relative;
}
.lang-switcher button {
    background: none;
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-700);
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.375rem;
    transition: all var(--transition);
}
.lang-switcher button:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* MOBILE NAV */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
}
.menu-toggle svg { width: 28px; height: 28px; color: var(--color-gray-800); }

@media (max-width: 900px) {
    .menu-toggle { display: block; }
    .header-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--color-white);
        border-bottom: 1px solid var(--color-gray-200);
        flex-direction: column;
        padding: var(--space-6);
        transform: translateY(-100%);
        transition: transform var(--transition);
        opacity: 0;
        pointer-events: none;
    }
    .header-nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
        box-shadow: var(--shadow-lg);
    }
    .header-nav ul {
        flex-direction: column;
        gap: var(--space-4);
        width: 100%;
    }
    .header-nav a {
        display: block;
        padding: var(--space-3) 0;
        font-size: 1.125rem;
    }
}

/* ========== HERO ========== */
.hero {
    position: relative;
    overflow: hidden;
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--color-primary-bg) 0%, #ffffff 60%);
}
.hero::before {
    content: "";
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(52, 133, 183, 0.08), transparent 60%);
    pointer-events: none;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
    position: relative;
}

.hero-content h1 {
    margin-bottom: var(--space-6);
    color: var(--color-gray-900);
}

.hero-content h1 .accent {
    color: var(--color-primary);
    font-style: italic;
}

.hero-content p.lead {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-gray-600);
    margin-bottom: var(--space-8);
    max-width: 540px;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}
.hero-image img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
    .hero-image { order: -1; }
}

/* ========== SECTION HEADER ========== */
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--space-16);
}
.section-eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-warm);
    margin-bottom: var(--space-4);
    padding: 0.375rem 0.875rem;
    background: var(--color-warm-light);
    background: rgba(153, 79, 28, 0.08);
    border-radius: 100px;
}
.section-header h2 {
    margin-bottom: var(--space-4);
}
.section-header p {
    color: var(--color-gray-600);
    font-size: 1.0625rem;
}

/* ========== CARD GRID GENERIC ========== */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}
@media (max-width: 900px) {
    .grid-3 { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
    .grid-4 { grid-template-columns: 1fr; }
}

/* CARDS */
.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
    border: 1px solid var(--color-gray-100);
}
.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
}

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
    background: var(--color-primary-bg);
    color: var(--color-primary);
    font-size: 1.5rem;
}
.card-icon.accent { background: rgba(148, 184, 58, 0.12); color: var(--color-accent); }
.card-icon.warm { background: rgba(153, 79, 28, 0.10); color: var(--color-warm); }

.card h3 {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1.125rem;
    margin-bottom: var(--space-3);
    color: var(--color-gray-900);
}
.card p {
    color: var(--color-gray-600);
    font-size: 0.9375rem;
    line-height: 1.65;
}

/* ========== FOOTER ========== */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--space-16) 0 var(--space-8);
    margin-top: var(--space-20);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.2fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-gray-700);
}

.footer-brand img {
    height: 44px;
    width: auto;
    margin-bottom: var(--space-4);
    filter: brightness(0) invert(1);
}
.footer-brand p {
    color: var(--color-gray-400);
    font-size: 0.9375rem;
    line-height: 1.6;
    max-width: 320px;
}

.footer h4 {
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-6);
}

.footer ul {
    list-style: none;
}
.footer li {
    margin-bottom: var(--space-3);
}
.footer a {
    color: var(--color-gray-400);
    font-size: 0.9375rem;
    transition: color var(--transition);
}
.footer a:hover {
    color: var(--color-white);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    font-size: 0.9375rem;
    color: var(--color-gray-400);
}
.footer-contact-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--color-primary-light);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--color-gray-500);
    flex-wrap: wrap;
    gap: var(--space-4);
}

@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}
@media (max-width: 560px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== UTILITY ========== */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out backwards;
}
.fade-in-up.delay-1 { animation-delay: 0.1s; }
.fade-in-up.delay-2 { animation-delay: 0.2s; }
.fade-in-up.delay-3 { animation-delay: 0.3s; }