/* ===================================
   Dr. Ronald Krantz - Medical Website
   Classic & Elegant Design System
   =================================== */

/* CSS Custom Properties */
:root {
    --color-teal-900: #0a3d4a;
    --color-teal-800: #0f4c5c;
    --color-teal-700: #146173;
    --color-teal-600: #1a7a8f;
    --color-teal-500: #2d9daa;
    --color-teal-100: #d0ebeb;
    --color-teal-50: #eaf6f7;
    
    --color-slate-900: #0f172a;
    --color-slate-800: #1e293b;
    --color-slate-700: #334155;
    --color-slate-600: #475569;
    --color-slate-500: #64748b;
    --color-slate-400: #94a3b8;
    --color-slate-300: #cbd5e1;
    --color-slate-200: #e2e8f0;
    --color-slate-100: #f1f5f9;
    --color-slate-50: #f8fafc;
    
    --color-white: #ffffff;
    --color-black: #000000;
    
    --font-serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --font-sans: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.10);
    --shadow-lg: 0 8px 32px rgba(15, 23, 42, 0.12);
    --shadow-xl: 0 16px 48px rgba(15, 23, 42, 0.14);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--color-slate-700);
    background-color: var(--color-white);
    line-height: 1.7;
    -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;
}

/* Utility */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-slate-200);
    transition: var(--transition);
}

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

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    display: flex;
    align-items: center;
    color: var(--color-teal-700);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-title {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-slate-900);
}

.logo-subtitle {
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--color-teal-700);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--color-slate-600);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-teal-600);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--color-teal-700);
}

.nav-links a::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--color-slate-700);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-teal-700);
    color: var(--color-white);
    border-color: var(--color-teal-700);
}

.btn-primary:hover {
    background: var(--color-teal-800);
    border-color: var(--color-teal-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--color-teal-700);
    border-color: var(--color-teal-700);
}

.btn-outline:hover {
    background: var(--color-teal-700);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-white {
    background: var(--color-white);
    color: var(--color-teal-800);
    border-color: var(--color-white);
}

.btn-white:hover {
    background: var(--color-slate-100);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-light {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline-light:hover {
    background: var(--color-white);
    color: var(--color-teal-800);
    border-color: var(--color-white);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.85rem;
}

.btn-full {
    width: 100%;
}

/* ===================================
   Section Shared
   =================================== */
.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-teal-600);
    margin-bottom: 12px;
}

.section-tag--light {
    color: var(--color-teal-200);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--color-slate-900);
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-title--light {
    color: var(--color-white);
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--color-slate-500);
    max-width: 600px;
    line-height: 1.8;
}

.section-subtitle--light {
    color: var(--color-teal-100);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header.light {
    margin-bottom: 60px;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    padding-top: 76px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-slate-50) 0%, var(--color-white) 50%, var(--color-teal-50) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(26, 122, 143, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding-top: 40px;
    padding-bottom: 40px;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: var(--color-white);
    border: 1px solid var(--color-teal-100);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-teal-700);
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-teal-500);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.2); }
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 700;
    color: var(--color-slate-900);
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-title .accent {
    color: var(--color-teal-700);
    font-style: italic;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-slate-500);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-trust {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--color-slate-600);
    font-weight: 500;
}

.trust-item svg {
    color: var(--color-teal-600);
}

/* Hero Image */
.hero-image {
    position: relative;
}

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

.hero-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-img-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 120px;
    height: 120px;
    background: var(--color-teal-100);
    border-radius: var(--radius-lg);
    z-index: -1;
}

.hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 24px;
}

.stat-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-slate-100);
}

.stat-card--highlight {
    background: var(--color-teal-700);
    border-color: var(--color-teal-700);
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-teal-700);
    line-height: 1.2;
}

.stat-card--highlight .stat-number {
    color: var(--color-white);
}

.stat-phone {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-slate-500);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 4px;
}

.stat-card--highlight .stat-label {
    color: var(--color-teal-100);
}

/* ===================================
   Services Section
   =================================== */
.services {
    padding: 100px 0;
    background: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    padding: 36px 28px;
    background: var(--color-slate-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-slate-100);
    transition: var(--transition);
}

.service-card:hover {
    background: var(--color-white);
    border-color: var(--color-teal-100);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-teal-50);
    border-radius: var(--radius-md);
    color: var(--color-teal-700);
    margin-bottom: 20px;
}

.service-card:hover .service-icon {
    background: var(--color-teal-700);
    color: var(--color-white);
}

.service-card h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-slate-900);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--color-slate-500);
    line-height: 1.7;
}

/* ===================================
   About Section
   =================================== */
.about {
    padding: 100px 0;
    background: var(--color-slate-50);
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-img-main {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-img-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about-img-secondary {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--color-white);
}

.about-img-secondary img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about-experience {
    position: absolute;
    top: -20px;
    left: -20px;
    background: var(--color-teal-700);
    color: var(--color-white);
    padding: 20px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.about-experience .exp-number {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.about-experience .exp-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 4px;
    opacity: 0.9;
}

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

.about-text {
    font-size: 1rem;
    color: var(--color-slate-600);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--color-slate-700);
    font-weight: 500;
}

.feature-item svg {
    color: var(--color-teal-600);
    flex-shrink: 0;
}

/* ===================================
   Patient Info Section
   =================================== */
.patient-info {
    padding: 100px 0;
    background: var(--color-teal-800);
    position: relative;
    overflow: hidden;
}

.patient-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top right, rgba(45, 157, 170, 0.2) 0%, transparent 60%);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.info-card {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    transition: var(--transition);
    backdrop-filter: blur(8px);
}

.info-card:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
}

.info-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.info-number {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-teal-300);
    line-height: 1;
    opacity: 0.6;
}

.info-card h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
}

.info-card p {
    font-size: 0.9rem;
    color: var(--color-teal-100);
    line-height: 1.7;
}

/* ===================================
   CTA Section
   =================================== */
.cta {
    padding: 80px 0;
    background: var(--color-slate-900);
    text-align: center;
}

.cta-title {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 16px;
}

.cta-text {
    font-size: 1.05rem;
    color: var(--color-slate-400);
    max-width: 560px;
    margin: 0 auto 36px;
    line-height: 1.8;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    padding: 100px 0;
    background: var(--color-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-description {
    font-size: 1rem;
    color: var(--color-slate-500);
    line-height: 1.8;
    margin-bottom: 36px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-teal-50);
    border-radius: var(--radius-md);
    color: var(--color-teal-700);
    flex-shrink: 0;
}

.contact-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-slate-400);
    margin-bottom: 4px;
}

.contact-value {
    display: block;
    font-size: 0.95rem;
    color: var(--color-slate-700);
    line-height: 1.6;
}

.contact-link {
    font-size: 1rem;
    color: var(--color-teal-700);
    font-weight: 600;
}

.contact-link:hover {
    color: var(--color-teal-800);
    text-decoration: underline;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-slate-50);
    border-radius: var(--radius-xl);
    padding: 40px;
    border: 1px solid var(--color-slate-100);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-slate-700);
}

.form-group input,
.form-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--color-slate-200);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--color-slate-700);
    background: var(--color-white);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-teal-500);
    box-shadow: 0 0 0 3px rgba(45, 157, 170, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-slate-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-success {
    display: none;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    background: var(--color-teal-50);
    border: 1px solid var(--color-teal-100);
    border-radius: var(--radius-sm);
    color: var(--color-teal-800);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-success.show {
    display: flex;
}

.form-success svg {
    color: var(--color-teal-600);
    flex-shrink: 0;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--color-slate-900);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.footer-logo .logo-title {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-white);
}

.footer-logo .logo-subtitle {
    font-size: 0.65rem;
    color: var(--color-teal-400);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.footer-desc {
    font-size: 0.85rem;
    color: var(--color-slate-400);
    line-height: 1.7;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 16px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--color-slate-400);
}

.footer-links a:hover {
    color: var(--color-teal-400);
}

.footer-contact address {
    font-style: normal;
    font-size: 0.85rem;
    color: var(--color-slate-400);
    line-height: 1.8;
}

.footer-contact a {
    color: var(--color-teal-400);
}

.footer-contact a:hover {
    color: var(--color-teal-300);
}

.footer-bottom {
    border-top: 1px solid var(--color-slate-800);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--color-slate-500);
}

.footer-disclaimer {
    font-size: 0.75rem !important;
    color: var(--color-slate-600) !important;
    max-width: 500px;
    text-align: right;
}

/* ===================================
   Mobile Menu
   =================================== */
.nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: 24px;
    border-bottom: 1px solid var(--color-slate-200);
    box-shadow: var(--shadow-lg);
    gap: 20px;
}

/* ===================================
   Responsive
   =================================== */
@media (max-width: 1024px) {
    .hero-container {
        gap: 40px;
    }
    
    .about-container {
        gap: 48px;
    }
    
    .contact-grid {
        gap: 48px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 48px;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-trust {
        justify-content: center;
    }
    
    .hero-image {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 28px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-disclaimer {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding-top: 76px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .about-img-secondary {
        width: 150px;
        right: -10px;
        bottom: -20px;
    }
    
    .about-experience {
        left: -10px;
        top: -10px;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-actions .btn {
        width: 100%;
        max-width: 300px;
    }
}