/* ========================
   CSS Variables & Reset
   ======================== */
:root {
    /* Colors - Medical Editorial Palette */
    --color-primary: #1a4d6f;
    --color-primary-light: #2566a8;
    --color-primary-dark: #0f3854;
    --color-accent: #e8a547;
    --color-accent-light: #f4c272;
    --color-text: #1a1a1a;
    --color-text-light: #555555;
    --color-text-muted: #888888;
    --color-bg: #fafafa;
    --color-white: #ffffff;
    --color-border: #e0e0e0;
    --color-overlay: rgba(26, 77, 111, 0.9);
    
    /* Typography */
    --font-display: 'Playfair Display', serif;
    --font-body: 'Source Sans 3', sans-serif;
    
    /* Spacing */
    --section-padding: 6rem 0;
    --container-padding: 2rem;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    
    /* 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;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ========================
   Typography
   ======================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
}

.section-label {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 1rem;
    animation: fadeInUp 0.6s ease-out;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.section-text {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

/* ========================
   Container & Layout
   ======================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--section-padding);
}

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

.section-dark .section-title,
.section-dark .section-text {
    color: var(--color-white);
}

.section-dark .section-text {
    color: rgba(255, 255, 255, 0.9);
}

.section-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.section-header-center {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

/* ========================
   Header & Navigation
   ======================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo .logo-img {
    height: 45px;
    width: auto;
}

.nav-menu {
    display: flex;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

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

/* ========================
   Hero Section
   ======================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.03;
    background-image: 
        radial-gradient(circle at 20% 50%, var(--color-primary) 1px, transparent 1px),
        radial-gradient(circle at 80% 80%, var(--color-accent) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(20px, 20px); }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 800px;
    margin-bottom: 4rem;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.hero-title-small {
    font-family: var(--font-body);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-accent);
    animation: fadeInUp 0.8s ease-out;
}

.hero-title-main {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    color: var(--color-primary-dark);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-description {
    font-size: 1.375rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.stat-card {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(26, 77, 111, 0.1);
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    animation: fadeIn 1s ease-out 1s both;
}

.scroll-indicator span {
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.scroll-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ========================
   Buttons
   ======================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

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

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

/* ========================
   Services Grid
   ======================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.service-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2.5rem;
    transition: var(--transition);
    animation: fadeInUp 0.6s ease-out both;
}

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

.service-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-accent);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.service-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(232, 165, 71, 0.15);
    border-radius: 50%;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--color-accent);
    color: var(--color-primary-dark);
    transform: scale(1.1) rotate(5deg);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-white);
}

.service-description {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.7;
}

.section-cta {
    text-align: center;
}

/* ========================
   Image Sections
   ======================== */
.section-image {
    position: relative;
}

.image-frame {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.image-placeholder {
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.4);
}

/* ========================
   CTA Section
   ======================== */
.cta-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(232, 165, 71, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 3rem;
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.cta-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
}

/* ========================
   Footer
   ======================== */
.footer {
    background-color: #0a1f2e;
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 1.5rem;
    filter: brightness(0) invert(1);
}

.footer-text {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--color-accent);
    color: var(--color-primary-dark);
    transform: translateY(-3px);
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.footer-links,
.footer-contact,
.footer-hours {
    list-style: none;
}

.footer-links li,
.footer-contact li,
.footer-hours li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-accent);
    padding-left: 5px;
}

.footer-contact li,
.footer-hours li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact svg {
    flex-shrink: 0;
    margin-top: 3px;
    color: var(--color-accent);
}

.footer-hours li {
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-hours li:last-child {
    border-bottom: none;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

/* ========================
   Modal
   ======================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 31, 46, 0.8);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    position: relative;
    background: var(--color-white);
    border-radius: 16px;
    padding: 3rem;
    max-width: 500px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: scaleIn 0.3s ease-out;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--color-text);
    transform: rotate(90deg);
}

.modal-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: 50%;
    color: var(--color-white);
}

.modal-title {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.modal-message {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* ========================
   Animations
   ======================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ========================
   Responsive Design
   ======================== */
@media (max-width: 968px) {
    .section-grid,
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-title-main {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cta-title {
        font-size: 2.25rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        padding: 2rem;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0;
    }
    
    .nav-link {
        display: block;
        padding: 1rem;
        font-size: 1.125rem;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
}

@media (max-width: 640px) {
    :root {
        --section-padding: 4rem 0;
        --container-padding: 1.5rem;
    }
    
    .hero-title-main {
        font-size: 2.25rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .cta-title {
        font-size: 1.75rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .modal-content {
        padding: 2rem;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .modal-actions .btn {
        width: 100%;
        justify-content: center;
    }
}