/* ===================================
   CSS Custom Properties
   =================================== */
:root {
    --color-terracotta: #B85838;
    --color-terracotta-dark: #9A4528;
    --color-terracotta-light: #D4846A;
    --color-sand: #F5EDE4;
    --color-sand-light: #FAF6F1;
    --color-sand-dark: #E8DDD2;
    --color-cream: #FDF9F5;
    --color-charcoal: #1E1E1E;
    --color-dark: #2C2420;
    --color-text: #3A302A;
    --color-text-light: #6B5E56;
    --color-text-muted: #9A8E86;
    --color-white: #FFFFFF;
    --color-border: rgba(184, 88, 56, 0.15);
    
    --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --shadow-sm: 0 1px 3px rgba(44, 36, 32, 0.06), 0 1px 2px rgba(44, 36, 32, 0.04);
    --shadow-md: 0 4px 16px rgba(44, 36, 32, 0.08), 0 2px 4px rgba(44, 36, 32, 0.04);
    --shadow-lg: 0 12px 40px rgba(44, 36, 32, 0.12), 0 4px 12px rgba(44, 36, 32, 0.06);
    
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.65;
    color: var(--color-text);
    background-color: var(--color-cream);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

address {
    font-style: normal;
}

/* ===================================
   Container
   =================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-2xl);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--space-3xl);
    }
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.15;
    color: var(--color-dark);
}

.section-eyebrow {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-terracotta);
    margin-bottom: var(--space-md);
}

.section-eyebrow--light {
    color: var(--color-terracotta-light);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.25rem);
    margin-bottom: var(--space-xl);
}

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

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn--primary:hover {
    background: var(--color-terracotta-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn--ghost {
    background: rgba(255, 255, 255, 0.12);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
}

.btn--ghost:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline-light {
    background: transparent;
    color: var(--color-white);
    border: 1.5px solid rgba(255, 255, 255, 0.4);
}

.btn--outline-light:hover {
    background: var(--color-white);
    color: var(--color-terracotta);
    border-color: var(--color-white);
}

.btn--full {
    width: 100%;
    justify-content: center;
}

.btn-nav {
    background: var(--color-terracotta);
    color: var(--color-white);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-base);
}

.btn-nav:hover {
    background: var(--color-terracotta-dark);
}

.btn-nav--mobile {
    margin-top: var(--space-lg);
    justify-content: center;
}

/* ===================================
   Header
   =================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(253, 249, 245, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

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

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-terracotta);
    color: var(--color-white);
    font-family: var(--font-serif);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    letter-spacing: 0.02em;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-dark);
}

.main-nav ul {
    display: none;
    align-items: center;
    gap: var(--space-xs);
}

.main-nav a:not(.btn-nav) {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

.main-nav a:not(.btn-nav):hover {
    color: var(--color-terracotta);
}

/* Mobile nav toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 32px;
    padding: 4px 0;
    z-index: 1001;
}

.nav-toggle-bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-dark);
    border-radius: 2px;
    transition: all var(--transition-base);
    transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Nav overlay */
.nav-overlay {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(30, 30, 30, 0.5);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

.nav-overlay-inner {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: min(320px, 85vw);
    background: var(--color-cream);
    padding: 100px var(--space-2xl) var(--space-2xl);
    transform: translateX(100%);
    transition: transform var(--transition-base);
}

.nav-overlay.active .nav-overlay-inner {
    transform: translateX(0);
}

.nav-overlay ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.nav-overlay-link {
    display: block;
    padding: var(--space-md) var(--space-lg);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-overlay-link:hover {
    color: var(--color-terracotta);
    background: var(--color-sand);
}

@media (min-width: 1024px) {
    .nav-toggle {
        display: none;
    }
    
    .main-nav ul {
        display: flex;
    }
    
    .nav-overlay {
        display: none;
    }
}

/* ===================================
   Hero
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    background: var(--color-dark);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: url('https://images.pexels.com/photos/8830486/pexels-photo-8830486.jpeg?auto=compress&cs=tinysrgb&fit=crop&w=1920&h=1080') center center / cover no-repeat;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(30, 30, 30, 0.82) 0%,
        rgba(44, 36, 32, 0.72) 50%,
        rgba(184, 88, 56, 0.45) 100%
    );
    z-index: 2;
}

.hero .container {
    position: relative;
    z-index: 3;
    padding-top: var(--space-5xl);
    padding-bottom: var(--space-4xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-3xl);
}

.hero-content {
    max-width: 680px;
}

.hero-eyebrow {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-terracotta-light);
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.hero-eyebrow::before {
    content: '';
    display: block;
    width: 40px;
    height: 1.5px;
    background: var(--color-terracotta-light);
}

.hero-headline {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.08;
    margin-bottom: var(--space-xl);
    letter-spacing: -0.01em;
}

.hero-headline .text-accent {
    color: var(--color-terracotta-light);
    font-style: italic;
    font-weight: 500;
}

.hero-sub {
    font-size: clamp(1rem, 1.5vw, 1.1875rem);
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.78);
    max-width: 540px;
    margin-bottom: var(--space-2xl);
}

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

.hero-cred {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    max-width: 560px;
}

.cred-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.cred-number {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.2;
}

.cred-label {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: 0.02em;
}

.cred-divider {
    flex: 0 0 1px;
    height: 48px;
    background: rgba(255, 255, 255, 0.15);
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
}

.hero-scroll svg {
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(4px); }
}

@media (max-width: 639px) {
    .hero-cred {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-md);
    }
    
    .cred-divider {
        width: 48px;
        height: 1px;
    }
    
    .hero-scroll {
        display: none;
    }
}

/* ===================================
   Services
   =================================== */
.services {
    padding: var(--space-5xl) 0;
    background: var(--color-cream);
}

.section-header {
    margin-bottom: var(--space-3xl);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-xl);
}

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-terracotta-light);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-sand);
    border-radius: var(--radius-md);
    color: var(--color-terracotta);
    margin-bottom: var(--space-lg);
    transition: all var(--transition-base);
}

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

.service-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.service-desc {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--color-text-light);
}

/* ===================================
   About
   =================================== */
.about {
    padding: var(--space-5xl) 0;
    background: var(--color-sand-light);
}

.about-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-image-wrap {
    position: relative;
}

.about-image-wrap img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-image-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 120px;
    height: 120px;
    background: var(--color-terracotta);
    border-radius: var(--radius-lg);
    z-index: -1;
}

.about-content {
    max-width: 560px;
}

.about-body {
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--color-text);
    margin-bottom: var(--space-lg);
}

.about-body:last-of-type {
    margin-bottom: var(--space-2xl);
}

.about-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.value-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
}

.value-item svg {
    color: var(--color-terracotta);
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .about-layout {
        grid-template-columns: 0.9fr 1.1fr;
        gap: var(--space-4xl);
    }
}

@media (max-width: 639px) {
    .about-values {
        grid-template-columns: 1fr;
    }
    
    .about-image-accent {
        width: 80px;
        height: 80px;
        bottom: -12px;
        right: -12px;
    }
}

/* ===================================
   Patient Info
   =================================== */
.patient-info {
    padding: var(--space-5xl) 0;
    background: var(--color-dark);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

.info-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    transition: all var(--transition-base);
}

.info-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(184, 88, 56, 0.3);
}

.info-card-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-terracotta);
    border-radius: var(--radius-md);
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

.info-card-title {
    font-size: 1.1875rem;
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.info-card-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.info-card-list li {
    display: flex;
    justify-content: space-between;
    gap: var(--space-md);
    font-size: 0.9375rem;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.info-card-list li:last-child {
    border-bottom: none;
}

.info-card-list li span:first-child {
    color: rgba(255, 255, 255, 0.6);
}

.info-card-list li span:last-child {
    color: var(--color-white);
    font-weight: 500;
}

.info-card-desc {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.65);
}

@media (min-width: 768px) {
    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .info-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===================================
   Location
   =================================== */
.location {
    padding: var(--space-5xl) 0;
    background: var(--color-cream);
}

.location-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    align-items: stretch;
}

.location-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.location-address {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-dark);
    line-height: 1.4;
}

.location-phone {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-terracotta);
    transition: color var(--transition-fast);
}

.location-phone:hover {
    color: var(--color-terracotta-dark);
}

.location-note {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.location-map {
    min-height: 300px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
    .location-layout {
        grid-template-columns: 0.9fr 1.1fr;
        gap: var(--space-4xl);
        align-items: stretch;
    }
    
    .location-map {
        min-height: 400px;
    }
}

/* ===================================
   Contact
   =================================== */
.contact {
    padding: var(--space-5xl) 0;
    background: var(--color-sand);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-info {
    max-width: 480px;
}

.contact-desc {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-text-light);
    margin-bottom: var(--space-2xl);
}

.contact-desc a {
    color: var(--color-terracotta);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.contact-desc a:hover {
    color: var(--color-terracotta-dark);
    text-decoration: underline;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-detail {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    color: var(--color-text);
}

.contact-detail svg {
    color: var(--color-terracotta);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-form-wrap {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--color-sand-dark);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--color-text);
    background: var(--color-cream);
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-terracotta);
    background: var(--color-white);
    box-shadow: 0 0 0 3px rgba(184, 88, 56, 0.1);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-success {
    text-align: center;
    padding: var(--space-3xl) var(--space-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.form-success svg {
    color: var(--color-terracotta);
}

.form-success h3 {
    font-size: 1.5rem;
    color: var(--color-dark);
}

.form-success p {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.6;
    max-width: 360px;
}

@media (min-width: 768px) {
    .contact-layout {
        grid-template-columns: 0.9fr 1.1fr;
        gap: var(--space-4xl);
    }
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--color-dark);
    color: rgba(255, 255, 255, 0.6);
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo-text {
    color: var(--color-white);
}

.footer-tagline {
    margin-top: var(--space-md);
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.45);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm) var(--space-xl);
}

.footer-links a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.55);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-terracotta-light);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-phone {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-terracotta-light);
    transition: color var(--transition-fast);
}

.footer-phone:hover {
    color: var(--color-white);
}

.footer-contact p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    padding-top: var(--space-xl);
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.3);
}

@media (min-width: 768px) {
    .footer-top {
        grid-template-columns: 1.2fr 1fr 1fr;
        align-items: start;
    }
    
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

/* ===================================
   Scroll Reveal (progressive enhancement)
   =================================== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fallback: ensure content is visible without JS */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
    }
}