/* ============================================
   DAKOTA ZITLAW DC - CHIROPRATIC WEBSITE
   Classic & Elegant Design System
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    /* Primary Palette - Teal */
    --teal-50: #f0fdfa;
    --teal-100: #ccfbf1;
    --teal-200: #99f6e4;
    --teal-300: #5eead4;
    --teal-400: #2dd4bf;
    --teal-500: #14b8a6;
    --teal-600: #0d9488;
    --teal-700: #0f766e;
    --teal-800: #115e59;
    --teal-900: #134e4a;
    --teal-950: #042f2e;

    /* Secondary Palette - Slate Grey */
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --slate-950: #020617;

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

    /* Spacing Scale */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;

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

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

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

body {
    font-family: var(--font-sans);
    color: var(--slate-800);
    background-color: var(--slate-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--teal-700);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--teal-600);
}

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

ul {
    list-style: none;
}

/* --- Utility Classes --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.875rem 2rem;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.9375rem;
    letter-spacing: 0.025em;
    text-transform: uppercase;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--teal-700);
    color: #ffffff;
}

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

.btn-teal {
    background-color: var(--teal-700);
    color: #ffffff;
}

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

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

.btn-white:hover {
    background-color: var(--slate-100);
    color: var(--teal-900);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-white {
    background-color: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-outline-white:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
    color: #ffffff;
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--slate-200);
    transition: all var(--transition-base);
}

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

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--teal-800);
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
}

.logo:hover {
    color: var(--teal-700);
}

.logo-icon {
    color: var(--teal-700);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-links a {
    color: var(--slate-600);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--teal-700);
    transition: width var(--transition-base);
}

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

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

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-xs);
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--slate-700);
    transition: all var(--transition-base);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 999;
    background-color: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

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

.close-menu {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    color: #ffffff;
    padding: var(--space-xs);
}

.mobile-nav-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    max-width: 85vw;
    height: 100%;
    background-color: var(--slate-900);
    padding: var(--space-3xl) var(--space-xl) var(--space-xl);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.mobile-menu-overlay.active .mobile-nav-content {
    transform: translateX(0);
}

.mobile-link {
    color: var(--slate-300);
    font-size: 1.125rem;
    font-weight: 500;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--slate-700);
    transition: color var(--transition-fast);
}

.mobile-link:hover {
    color: var(--teal-400);
}

.mobile-contact {
    margin-top: auto;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--slate-700);
}

.mobile-contact p {
    color: var(--slate-400);
    font-size: 0.9375rem;
    margin-bottom: var(--space-sm);
}

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

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #0f766e 0%, #115e59 25%, #1e293b 50%, #0f172a 75%, #042f2e 100%);
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(20, 184, 166, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(148, 163, 184, 0.2) 0%, transparent 40%),
        radial-gradient(ellipse at 60% 80%, rgba(13, 148, 136, 0.25) 0%, transparent 45%);
    pointer-events: none;
}

.hero-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: var(--space-4xl) var(--space-md);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--space-xs) var(--space-md);
    border-radius: 50px;
    color: var(--teal-200);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: var(--space-xl);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background-color: var(--teal-400);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    color: #ffffff;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1.0625rem, 2vw, 1.25rem);
    color: var(--slate-300);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-3xl);
}

.hero-trust {
    display: flex;
    gap: var(--space-xl);
    justify-content: center;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--slate-300);
    font-size: 0.9375rem;
}

.trust-item svg {
    color: var(--teal-400);
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Section Styles --- */
.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto var(--space-3xl);
}

.section-label {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--teal-700);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--slate-900);
    line-height: 1.2;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--slate-500);
    line-height: 1.7;
}

/* --- Services Section --- */
.services {
    padding: var(--space-4xl) 0;
    background-color: var(--slate-50);
}

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

.service-card {
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    border: 1px solid var(--slate-200);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--teal-200);
}

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

.service-card h3 {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: var(--space-sm);
}

.service-card p {
    color: var(--slate-600);
    line-height: 1.7;
    font-size: 0.9375rem;
}

/* --- About Section --- */
.about {
    padding: var(--space-4xl) 0;
    background-color: #ffffff;
}

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

.about-image {
    position: relative;
}

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

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

.about-img-accent {
    position: absolute;
    bottom: -40px;
    right: -40px;
    width: 60%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 6px solid #ffffff;
    box-shadow: var(--shadow-lg);
}

.about-img-accent img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-experience {
    position: absolute;
    top: -20px;
    left: -20px;
    background-color: var(--teal-700);
    color: #ffffff;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.about-experience .exp-number {
    display: block;
    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: 0.1em;
    opacity: 0.9;
}

.about-content {
    padding: var(--space-lg) 0;
}

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

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--slate-700);
    font-weight: 500;
    font-size: 0.9375rem;
}

.feature-icon-small {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--teal-700);
    flex-shrink: 0;
}

/* --- Approach Section --- */
.approach {
    padding: var(--space-4xl) 0;
    background-color: var(--slate-100);
}

.approach-steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

.approach-step {
    display: flex;
    gap: var(--space-lg);
    background-color: #ffffff;
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--slate-200);
    transition: all var(--transition-base);
}

.approach-step:hover {
    border-color: var(--teal-200);
    box-shadow: var(--shadow-md);
}

.step-number {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    color: var(--teal-100);
    line-height: 1;
    flex-shrink: 0;
}

.step-content h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: var(--space-sm);
}

.step-content p {
    color: var(--slate-600);
    line-height: 1.7;
    font-size: 0.9375rem;
}

/* --- Testimonials Section --- */
.testimonials {
    padding: var(--space-4xl) 0;
    background-color: var(--slate-900);
}

.testimonials .section-title {
    color: #ffffff;
}

.testimonials .section-subtitle {
    color: var(--slate-400);
}

.testimonials .section-label {
    color: var(--teal-400);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.testimonial-card {
    background-color: var(--slate-800);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    border: 1px solid var(--slate-700);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    border-color: var(--teal-700);
    transform: translateY(-4px);
}

.testimonial-quote {
    color: var(--teal-400);
    margin-bottom: var(--space-md);
}

.testimonial-text {
    color: var(--slate-300);
    line-height: 1.8;
    font-size: 1rem;
    margin-bottom: var(--space-lg);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.author-name {
    font-weight: 700;
    color: #ffffff;
    font-size: 1rem;
}

.author-location {
    color: var(--slate-500);
    font-size: 0.875rem;
}

/* --- Contact Section --- */
.contact {
    padding: var(--space-4xl) 0;
    background-color: #ffffff;
}

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

.contact-description {
    color: var(--slate-600);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
    font-size: 1.0625rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.contact-item {
    display: flex;
    gap: var(--space-md);
}

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

.contact-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--slate-500);
    margin-bottom: 4px;
}

.contact-text p {
    color: var(--slate-800);
    line-height: 1.6;
}

.contact-text a {
    color: var(--teal-700);
    font-weight: 500;
}

.contact-text a:hover {
    color: var(--teal-600);
    text-decoration: underline;
}

.contact-hours {
    background-color: var(--slate-50);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--slate-200);
}

.contact-hours h4 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: var(--space-sm);
}

.contact-hours p {
    color: var(--slate-600);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* Contact Form */
.contact-form-wrapper {
    background-color: var(--slate-50);
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--slate-200);
}

.contact-form h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: var(--space-xl);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--slate-700);
    margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--slate-300);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--slate-800);
    background-color: #ffffff;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--teal-500);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

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

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

.form-success {
    display: none;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background-color: var(--teal-50);
    border: 1px solid var(--teal-200);
    border-radius: var(--radius-md);
    color: var(--teal-800);
    font-weight: 500;
    margin-top: var(--space-md);
}

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

.form-success svg {
    color: var(--teal-700);
    flex-shrink: 0;
}

/* --- Map Section --- */
.map-section {
    border-top: 4px solid var(--teal-700);
}

.map-container {
    height: 400px;
}

.map-container iframe {
    width: 100%;
    height: 100%;
}

/* --- Footer --- */
.footer {
    background-color: var(--slate-900);
    color: var(--slate-400);
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: #ffffff;
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

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

.footer-tagline {
    line-height: 1.7;
    font-size: 0.9375rem;
    max-width: 300px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: var(--space-md);
}

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

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

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

.footer-contact p {
    margin-bottom: var(--space-sm);
    font-size: 0.9375rem;
    line-height: 1.6;
}

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

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

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

.footer-bottom p {
    font-size: 0.875rem;
}

.footer-legal {
    font-size: 0.8125rem !important;
    color: var(--slate-500) !important;
}

/* --- Back to Top --- */
.back-to-top {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--teal-700);
    color: #ffffff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
    z-index: 100;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--teal-800);
    transform: translateY(-2px);
}

/* --- Scroll Reveal Animation --- */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
    .about-grid {
        gap: var(--space-2xl);
    }
    
    .about-img-accent {
        right: -20px;
        bottom: -20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-2xl);
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    :root {
        --space-4xl: 5rem;
        --space-3xl: 4rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        min-height: 100svh;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .hero-trust {
        flex-direction: column;
        align-items: center;
        gap: var(--space-sm);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .about-img-accent {
        width: 50%;
        right: -10px;
        bottom: -10px;
    }
    
    .about-experience {
        top: -10px;
        left: -10px;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .approach-steps {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: var(--space-lg);
    }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .hero-scroll {
        animation: none;
    }
    
    .badge-dot {
        animation: none;
        opacity: 1;
    }
}