/* ============================================
   PITTSBURGH PHOTON STUDIO
   Classic & Elegant Medical Imaging Website
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    /* Midnight Blue Palette */
    --midnight-950: #050d18;
    --midnight-900: #0a1628;
    --midnight-800: #0f1f35;
    --midnight-700: #1a3a5c;
    --midnight-600: #24507a;
    --midnight-500: #2e6a9e;
    --midnight-400: #4a8bc2;
    --midnight-300: #7ab0db;
    --midnight-200: #b0d0ed;
    --midnight-100: #dceaf6;
    --midnight-50:  #eef5fb;

    /* Mint Palette */
    --mint-900:  #0f3d35;
    --mint-800:  #1a5c4f;
    --mint-700:  #237a68;
    --mint-600:  #2d9a83;
    --mint-500:  #3fb89d;
    --mint-400:  #7ec8b8;
    --mint-300:  #a8d8cc;
    --mint-200:  #c8e6df;
    --mint-100:  #e2f3ee;
    --mint-50:   #f0f9f6;

    /* Neutrals */
    --neutral-950: #0a0a0a;
    --neutral-900: #141414;
    --neutral-800: #1f1f1f;
    --neutral-700: #2d2d2d;
    --neutral-600: #404040;
    --neutral-500: #5c5c5c;
    --neutral-400: #7a7a7a;
    --neutral-300: #a3a3a3;
    --neutral-200: #d1d1d1;
    --neutral-100: #ebebeb;
    --neutral-50:  #f7f7f7;
    --neutral-25:  #fafafa;
    --neutral-0:   #ffffff;

    /* Typography */
    --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-sans: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --container-max: 1280px;
    --section-padding: clamp(4rem, 10vw, 8rem);
    --container-padding: clamp(1.25rem, 4vw, 3rem);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(10, 22, 40, 0.05);
    --shadow-md: 0 4px 16px rgba(10, 22, 40, 0.08);
    --shadow-lg: 0 8px 32px rgba(10, 22, 40, 0.12);
    --shadow-xl: 0 16px 48px rgba(10, 22, 40, 0.16);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--neutral-800);
    background-color: var(--neutral-0);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

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

ul, ol {
    list-style: none;
}

/* --- Accessibility --- */
.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    padding: 0.75rem 1.5rem;
    background: var(--midnight-800);
    color: var(--neutral-0);
    border-radius: var(--radius-md);
    z-index: 10000;
    font-weight: 600;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 1rem;
}

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

/* --- Typography --- */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.2;
    color: var(--midnight-900);
}

/* --- Section Labels --- */
.section-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--mint-600);
    margin-bottom: 1rem;
}

.section-label::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 1px;
    background: var(--mint-400);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
}

.section-title--light {
    color: var(--neutral-0);
}

.section-subtitle {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    color: var(--neutral-500);
    max-width: 600px;
    line-height: 1.7;
}

.section-subtitle--light {
    color: var(--neutral-300);
    max-width: 500px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--mint-500);
    color: var(--midnight-900);
    border: 2px solid var(--mint-500);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    background: var(--mint-400);
    border-color: var(--mint-400);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-ghost {
    background: transparent;
    color: var(--neutral-0);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
    border-color: var(--mint-400);
    color: var(--mint-400);
    background: rgba(126, 200, 184, 0.08);
}

.btn-lg {
    padding: 1rem 2.25rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: all var(--transition-base);
}

.site-header.scrolled {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 0.75rem 0;
    box-shadow: 0 1px 0 rgba(126, 200, 184, 0.1);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--neutral-0);
    font-family: var(--font-sans);
}

.logo-icon {
    color: var(--mint-400);
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-primary {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.logo-secondary {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--mint-400);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* Navigation */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    padding: 4px;
}

.hamburger {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--neutral-0);
    border-radius: 2px;
    transition: all var(--transition-base);
    transform-origin: center;
}

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

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

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--neutral-200);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--mint-400);
    transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--mint-400);
}

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

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    background: var(--midnight-950);
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

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

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
    padding: 3rem 0;
}

.hero-content {
    max-width: 580px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 1rem;
    background: rgba(126, 200, 184, 0.1);
    border: 1px solid rgba(126, 200, 184, 0.2);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--mint-300);
    margin-bottom: 2rem;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--mint-400);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
    font-size: clamp(2.75rem, 5.5vw, 4.5rem);
    font-weight: 500;
    color: var(--neutral-0);
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.hero-title .accent-italic {
    font-style: italic;
    color: var(--mint-400);
    font-weight: 400;
}

.hero-description {
    font-size: clamp(1rem, 1.25vw, 1.125rem);
    color: var(--neutral-300);
    line-height: 1.75;
    margin-bottom: 2.5rem;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 0;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-item {
    flex: 1;
    min-width: 0;
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 2.5vw, 2.25rem);
    font-weight: 600;
    color: var(--mint-400);
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--neutral-400);
    letter-spacing: 0.02em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: flex-end;
}

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

.hero-image-frame img {
    width: 100%;
    height: 750px;
    object-fit: cover;
    display: block;
}

.hero-image-accent {
    position: absolute;
    bottom: -20px;
    left: -20px;
    width: 120px;
    height: 120px;
    border: 2px solid var(--mint-400);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.4;
}

.hero-floating-card {
    position: absolute;
    bottom: 2rem;
    left: -3rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: var(--neutral-0);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--midnight-900);
    z-index: 2;
}

.hero-floating-card svg {
    color: var(--mint-500);
    flex-shrink: 0;
}

/* Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--neutral-500);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    animation: float-indicator 2s ease-in-out infinite;
}

@keyframes float-indicator {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(6px); }
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    padding: var(--section-padding) 0;
    background: var(--neutral-0);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header .section-subtitle {
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.service-card {
    padding: 2.25rem;
    background: var(--neutral-25);
    border: 1px solid var(--neutral-100);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--mint-500), var(--mint-300));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

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

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--midnight-50);
    border: 1px solid var(--midnight-100);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    color: var(--midnight-700);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    background: var(--midnight-900);
    border-color: var(--midnight-900);
    color: var(--mint-400);
}

.service-title {
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.service-description {
    font-size: 0.9375rem;
    color: var(--neutral-500);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.service-list li {
    font-size: 0.8125rem;
    color: var(--neutral-600);
    padding-left: 1rem;
    position: relative;
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.45em;
    width: 4px;
    height: 4px;
    background: var(--mint-400);
    border-radius: 50%;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: var(--section-padding) 0;
    background: var(--neutral-50);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
}

.about-visual {
    position: relative;
}

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

.about-image-main img {
    width: 100%;
    height: 640px;
    object-fit: cover;
    display: block;
}

.about-image-secondary {
    position: absolute;
    bottom: -2rem;
    right: -2rem;
    width: 55%;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 4px solid var(--neutral-50);
}

.about-image-secondary img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    display: block;
}

.about-experience-badge {
    position: absolute;
    top: -1.5rem;
    right: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    background: var(--midnight-900);
    border-radius: var(--radius-md);
    color: var(--neutral-0);
    box-shadow: var(--shadow-lg);
}

.experience-number {
    font-family: var(--font-serif);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--mint-400);
    line-height: 1;
}

.experience-text {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--neutral-300);
    line-height: 1.4;
}

.about-content {
    padding: 1rem 0;
}

.about-text {
    font-size: 1.0625rem;
    color: var(--neutral-600);
    line-height: 1.8;
    margin-bottom: 1.25rem;
}

.about-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.value-item {
    display: flex;
    gap: 0.875rem;
    align-items: flex-start;
}

.value-icon {
    color: var(--mint-500);
    flex-shrink: 0;
    margin-top: 2px;
}

.value-item strong {
    display: block;
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 600;
    color: var(--midnight-900);
    margin-bottom: 0.125rem;
}

.value-item span {
    font-size: 0.875rem;
    color: var(--neutral-500);
    line-height: 1.5;
}

/* ============================================
   PATIENTS SECTION
   ============================================ */
.patients {
    padding: var(--section-padding) 0;
    background: var(--midnight-900);
    position: relative;
    overflow: hidden;
}

.patients::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(ellipse at top right, rgba(126, 200, 184, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.patients-header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.patients-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.patient-step {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.patient-step:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(126, 200, 184, 0.2);
    transform: translateY(-4px);
}

.step-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    color: var(--mint-400);
    opacity: 0.25;
    line-height: 1;
    margin-bottom: 1rem;
}

.step-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--neutral-0);
    margin-bottom: 0.75rem;
}

.step-description {
    font-size: 0.9375rem;
    color: var(--neutral-400);
    line-height: 1.7;
}

.patients-cta {
    margin-top: 4rem;
    position: relative;
    z-index: 1;
}

.cta-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: center;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
}

.cta-title {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    color: var(--neutral-0);
    margin-bottom: 0.5rem;
}

.cta-subtitle {
    font-size: 1rem;
    color: var(--neutral-400);
    line-height: 1.6;
}

.cta-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex-shrink: 0;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--section-padding) 0;
    background: var(--neutral-0);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 5rem);
    margin-bottom: 4rem;
}

.contact-intro {
    font-size: 1.0625rem;
    color: var(--neutral-500);
    line-height: 1.75;
    margin-bottom: 2.5rem;
    max-width: 480px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--midnight-50);
    border: 1px solid var(--midnight-100);
    border-radius: var(--radius-md);
    color: var(--midnight-700);
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 600;
    color: var(--midnight-900);
    margin-bottom: 0.25rem;
}

.contact-item p {
    font-size: 0.9375rem;
    color: var(--neutral-500);
    line-height: 1.6;
}

.contact-item a {
    color: var(--mint-600);
    transition: color var(--transition-fast);
}

.contact-item a:hover {
    color: var(--mint-500);
    text-decoration: underline;
}

/* Contact Form */
.form-card {
    padding: 2.5rem;
    background: var(--neutral-25);
    border: 1px solid var(--neutral-100);
    border-radius: var(--radius-xl);
}

.form-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--midnight-900);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.form-group label {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--neutral-600);
}

.required {
    color: var(--mint-500);
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    padding: 0.875rem 1rem;
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-sm);
    background: var(--neutral-0);
    color: var(--neutral-800);
    transition: all var(--transition-fast);
    outline: none;
    width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--mint-400);
    box-shadow: 0 0 0 3px rgba(126, 200, 184, 0.15);
}

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

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

.form-privacy {
    font-size: 0.75rem;
    color: var(--neutral-400);
    text-align: center;
    margin-top: 1rem;
}

.form-success {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 3rem 2rem;
    gap: 1rem;
}

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

.form-success svg {
    color: var(--mint-500);
}

.form-success h4 {
    font-size: 1.5rem;
    color: var(--midnight-900);
}

.form-success p {
    font-size: 0.9375rem;
    color: var(--neutral-500);
    line-height: 1.6;
}

/* Map */
.map-section {
    margin-top: 2rem;
}

.map-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--midnight-950);
    color: var(--neutral-300);
    padding: 4rem 0 0;
}

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

.logo--footer {
    margin-bottom: 1.25rem;
}

.footer-tagline {
    font-size: 0.9375rem;
    color: var(--neutral-400);
    line-height: 1.7;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--neutral-0);
    margin-bottom: 1.25rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.footer-links a {
    font-size: 0.9375rem;
    color: var(--neutral-400);
    transition: color var(--transition-fast);
}

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

.footer-contact p {
    font-size: 0.9375rem;
    color: var(--neutral-400);
    line-height: 1.7;
    margin-bottom: 0.25rem;
}

.footer-contact a {
    color: var(--mint-400);
    transition: color var(--transition-fast);
}

.footer-contact a:hover {
    color: var(--mint-300);
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 1.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--neutral-500);
}

.footer-legal {
    font-size: 0.75rem !important;
    color: var(--neutral-600) !important;
}

/* ============================================
   SCROLL ANIMATIONS (progressive enhancement)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-description {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-visual {
        max-width: 560px;
        margin: 0 auto;
    }

    .patients-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .cta-actions {
        flex-direction: row;
        justify-content: center;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: min(320px, 85vw);
        height: 100vh;
        height: 100dvh;
        background: var(--midnight-900);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transform: translateX(100%);
        transition: transform var(--transition-base);
        z-index: 999;
        box-shadow: -8px 0 32px rgba(0, 0, 0, 0.3);
    }

    .nav-links.open {
        transform: translateX(0);
    }

    .nav-links a {
        font-size: 1.125rem;
        color: var(--neutral-200);
    }

    .nav-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 998;
    }

    .nav-overlay.show {
        display: block;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .about-image-secondary {
        position: relative;
        bottom: auto;
        right: auto;
        width: 100%;
        margin-top: 1rem;
    }

    .about-image-main img {
        height: 400px;
    }

    .about-experience-badge {
        top: 1rem;
        right: 1rem;
    }

    .about-values {
        grid-template-columns: 1fr;
    }

    .patients-grid {
        grid-template-columns: 1fr;
    }

    .cta-card {
        padding: 2rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.25rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .form-card {
        padding: 1.5rem;
    }
}