/* ==========================================================================
   LUMINA - CLÍNICA DENTAL PREMIUM
   ========================================================================== */

:root {
    /* Colors */
    --bg-primary: #FDFDFD;
    --bg-secondary: #F3F4F6;
    --bg-accent: #E0F2FE;
    --bg-accent-dark: #0F766E;
    
    --text-primary: #111827;
    --text-secondary: #4B5563;
    --text-light: #F9FAFB;
    
    --border-color: #E5E7EB;
    
    --primary: #0F766E; /* Premium Teal */
    --primary-light: #14B8A6;
    --primary-dark: #115E59;
    
    --accent: #0284C7; /* Calm Blue */
    
    /* Typography */
    --font-heading: 'Outfit', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-serif: 'Playfair Display', serif;
    
    /* Spacing & Layout */
    --max-width: 1300px;
    --header-height: 90px;
    
    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   RESET & BASICS
   -------------------------------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: initial; /* Lenis handles this */
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.2;
}

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

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

/* --------------------------------------------------------------------------
   TYPOGRAPHY
   -------------------------------------------------------------------------- */
.serif-text {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
}

.section-subtitle {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.section-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 2rem;
}

/* --------------------------------------------------------------------------
   LAYOUT CONTAINERS
   -------------------------------------------------------------------------- */
.container {
    width: 90%;
    max-width: var(--max-width);
    margin: 0 auto;
}

.section {
    padding: 120px 0;
}

.section-alt {
    background-color: var(--bg-secondary);
}

/* --------------------------------------------------------------------------
   BUTTONS
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(15, 118, 110, 0.2);
}

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

.btn-outline:hover {
    background-color: var(--primary);
    color: var(--text-light);
}

/* --------------------------------------------------------------------------
   HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    display: flex;
    align-items: center;
    z-index: 100;
    transition: var(--transition-smooth);
    background-color: transparent;
}

.header.scrolled {
    background-color: rgba(253, 253, 253, 0.95);
    backdrop-filter: blur(10px);
    height: 70px;
    box-shadow: 0 1px 10px rgba(0,0,0,0.05);
}

.header-container {
    width: 90%;
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.5px;
}

.logo span {
    font-weight: 300;
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition-smooth);
}

.nav-link:hover::after {
    width: 100%;
}

@media (max-width: 900px) {
    .nav-menu {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   HERO SECTION
   -------------------------------------------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(253, 253, 253, 1) 0%, rgba(253, 253, 253, 0.8) 50%, rgba(253, 253, 253, 0.2) 100%);
}

.hero-content {
    max-width: 650px;
}

.hero-title {
    font-size: clamp(3rem, 6vw, 4.5rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-title span {
    color: var(--primary);
}

.hero-desc {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

@media (max-width: 600px) {
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
        text-align: center;
    }
}

/* --------------------------------------------------------------------------
   PHILOSOPHY SECTION
   -------------------------------------------------------------------------- */
.philosophy-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.philosophy-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
}

.philosophy-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    transition: transform 0.5s ease;
}

.philosophy-image:hover img {
    transform: scale(1.05);
}

.philosophy-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.stat-item h4 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

@media (max-width: 900px) {
    .philosophy-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* --------------------------------------------------------------------------
   SERVICES SECTION
   -------------------------------------------------------------------------- */
.services-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: #FFF;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    border: 1px solid var(--border-color);
    transition: box-shadow 0.4s ease, border-color 0.4s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    box-shadow: 0 15px 30px rgba(15, 118, 110, 0.08);
    border-color: var(--primary-light);
}

.service-card-img {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
}

.service-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.service-card:hover .service-card-img img {
    transform: scale(1.05);
}

.service-card-content {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.service-icon {
    width: 50px;
    height: 50px;
    background-color: var(--bg-accent);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 20px;
    transition: var(--transition-smooth);
}

.service-card:hover .service-icon {
    background-color: var(--primary);
    color: #FFF;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.service-link {
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.service-link i {
    transition: transform 0.3s ease;
}

.service-card:hover .service-link i {
    transform: translateX(5px);
}

/* --------------------------------------------------------------------------
   BOOKING SECTION
   -------------------------------------------------------------------------- */
.booking-section {
    background-color: var(--bg-accent-dark);
    color: #FFF;
    position: relative;
    overflow: hidden;
}

.booking-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.booking-content .section-title,
.booking-content .section-subtitle,
.booking-content .section-desc {
    color: #FFF;
}

.booking-content .section-subtitle {
    color: var(--primary-light);
}

.booking-form {
    background: #FFF;
    border-radius: 24px;
    padding: 40px;
    color: var(--text-primary);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-smooth);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.1);
}

.booking-form .btn {
    width: 100%;
    margin-top: 10px;
}

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

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.footer {
    background-color: var(--text-primary);
    color: var(--text-light);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    font-size: 2rem;
    color: #FFF;
    margin-bottom: 1rem;
    display: block;
}

.footer-desc {
    color: #9CA3AF;
    max-width: 300px;
}

.footer h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #FFF;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin-bottom: 12px;
}

.footer ul li a {
    color: #9CA3AF;
}

.footer ul li a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    color: #9CA3AF;
    font-size: 0.9rem;
}

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

@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

/* --------------------------------------------------------------------------
   UTILITIES
   -------------------------------------------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
}


/* --------------------------------------------------------------------------
   DEMO WATERMARK
   -------------------------------------------------------------------------- */
.demo-watermark {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 99999;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(10px);
    color: #fff;
    padding: 12px 24px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-family: 'Inter', sans-serif;
    text-decoration: none;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: 0.05em;
}

.demo-watermark:hover {
    background: #0F766E;
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(15, 118, 110, 0.3);
}

.demo-watermark strong {
    font-weight: 700;
}