/* ===================================
   Stocking Optometry — Custom Styles
   =================================== */

/* --- CSS Custom Properties --- */
:root {
    /* Forest Green Palette */
    --color-primary: #1a4d2e;
    --color-primary-light: #2d6a4f;
    --color-primary-dark: #0f3319;
    --color-primary-muted: rgba(26, 77, 46, 0.08);
    --color-primary-subtle: rgba(26, 77, 46, 0.04);
    
    /* Off-White Palette */
    --color-bg: #f8f7f4;
    --color-bg-warm: #f5f3ef;
    --color-bg-white: #ffffff;
    --color-bg-cream: #faf9f6;
    
    /* Neutrals */
    --color-text: #1a1a1a;
    --color-text-secondary: #4a4a4a;
    --color-text-muted: #7a7a7a;
    --color-border: #e8e6e1;
    --color-border-light: #f0efe9;
    
    /* Typography */
    --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing Scale */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Borders & Shadows */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06), 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04);
    --shadow-smooth: 0 2px 20px rgba(26, 77, 46, 0.08);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- 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-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

input, select, textarea, button {
    font-family: inherit;
    font-size: inherit;
}

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

button {
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* --- Accessibility --- */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-md);
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-sm);
    z-index: 1000;
    font-weight: 500;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--space-md);
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-lg);
    }
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-text);
}

.section-eyebrow {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
    display: block;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    margin-bottom: var(--space-lg);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 560px;
    line-height: 1.7;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.875rem 1.75rem;
    border-radius: 50px;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 4px 16px rgba(26, 77, 46, 0.25);
}

.btn-primary:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(26, 77, 46, 0.3);
}

.btn-secondary {
    background: var(--color-bg-white);
    color: var(--color-primary);
    border: 1.5px solid var(--color-border);
}

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

.btn-full {
    width: 100%;
}

/* --- Header --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(248, 247, 244, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

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

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

/* --- Logo --- */
.logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--color-primary);
}

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

.logo-text {
    font-weight: 600;
    letter-spacing: -0.01em;
}

.logo-light {
    color: white;
}

.logo-light .logo-icon {
    color: white;
}

/* --- Navigation --- */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-2xl);
}

.nav-list {
    display: flex;
    gap: var(--space-xl);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

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

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

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.625rem 1.25rem;
    background: var(--color-primary);
    color: white;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition-base);
}

.nav-cta:hover {
    background: var(--color-primary-light);
    transform: translateY(-1px);
}

/* --- Mobile Nav Toggle --- */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.nav-toggle:hover {
    background: var(--color-primary-muted);
}

.hamburger {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-text);
    position: relative;
    transition: all var(--transition-base);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-base);
}

.hamburger::before {
    top: -6px;
}

.hamburger::after {
    top: 6px;
}

.nav-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-bg);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--space-2xl);
        gap: var(--space-xl);
        transform: translateX(100%);
        transition: transform var(--transition-slow);
        overflow-y: auto;
    }
    
    .nav-menu.open {
        transform: translateX(0);
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--space-lg);
        width: 100%;
    }
    
    .nav-link {
        font-size: 1.25rem;
        color: var(--color-text);
    }
    
    .nav-cta {
        margin-top: var(--space-md);
        padding: 1rem 2rem;
        font-size: 1rem;
    }
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        var(--color-bg) 0%,
        var(--color-bg-warm) 50%,
        rgba(45, 106, 79, 0.06) 100%
    );
    z-index: -2;
}

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

.hero-content {
    max-width: 540px;
}

.hero-eyebrow {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

.hero-title {
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    line-height: 1.1;
    margin-bottom: var(--space-xl);
    color: var(--color-text);
}

.hero-accent {
    font-style: italic;
    color: var(--color-primary);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.75;
    margin-bottom: var(--space-2xl);
    max-width: 480px;
}

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

.hero-trust {
    display: flex;
    gap: var(--space-2xl);
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.trust-item svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    height: 700px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.hero-image-accent {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 120px;
    height: 120px;
    background: var(--color-primary);
    border-radius: 50%;
    opacity: 0.08;
    z-index: -1;
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    color: var(--color-bg);
}

.hero-wave svg {
    width: 100%;
    height: 80px;
}

@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .hero-content {
        max-width: 100%;
        text-align: center;
    }
    
    .hero-description {
        max-width: 100%;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-trust {
        justify-content: center;
    }
    
    .hero-image img {
        height: 480px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-image img {
        height: 360px;
    }
}

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

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

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

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

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

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    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: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-subtle);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
    transition: all var(--transition-base);
}

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

.service-title {
    font-size: 1.2rem;
    margin-bottom: var(--space-sm);
    font-weight: 600;
    font-family: var(--font-sans);
    color: var(--color-text);
}

.service-description {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

@media (max-width: 968px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

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

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

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

.about-image-wrapper img {
    width: 100%;
    height: 640px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.about-image-accent {
    position: absolute;
    bottom: -16px;
    left: -16px;
    width: 100px;
    height: 100px;
    background: var(--color-primary);
    border-radius: var(--radius-lg);
    opacity: 0.06;
    z-index: -1;
}

.about-content {
    max-width: 480px;
}

.about-text {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-top: var(--space-2xl);
}

.about-feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
}

.about-feature svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

@media (max-width: 968px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .about-image-wrapper img {
        height: 400px;
    }
    
    .about-content {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .about-features {
        grid-template-columns: 1fr;
    }
}

/* --- Insurance Section --- */
.insurance {
    padding: var(--space-4xl) 0;
    background: var(--color-primary);
    color: white;
}

.insurance-content {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.insurance .section-eyebrow {
    color: rgba(255, 255, 255, 0.7);
}

.insurance .section-title {
    color: white;
}

.insurance-text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: var(--space-2xl);
}

.insurance-badges {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    flex-wrap: wrap;
}

.insurance-badge {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-xl);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
}

.insurance-badge svg {
    color: rgba(255, 255, 255, 0.9);
    flex-shrink: 0;
}

.insurance-badge span {
    font-size: 0.95rem;
    font-weight: 500;
    color: white;
}

@media (max-width: 600px) {
    .insurance-badges {
        flex-direction: column;
        align-items: center;
    }
    
    .insurance-badge {
        width: 100%;
        justify-content: center;
    }
}

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

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

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

.contact-text {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    line-height: 1.75;
    margin-bottom: var(--space-2xl);
}

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

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

.contact-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-subtle);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-label {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 2px;
}

.contact-value {
    font-size: 1rem;
    color: var(--color-text);
    line-height: 1.5;
}

.contact-value a {
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.contact-value a:hover {
    color: var(--color-primary-light);
    text-decoration: underline;
}

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

/* --- Contact Form --- */
.contact-form-wrapper {
    background: var(--color-bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-smooth);
}

.form-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-xl);
    font-weight: 600;
    font-family: var(--font-sans);
}

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

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--color-text);
    background: var(--color-bg);
    transition: all var(--transition-fast);
    appearance: none;
}

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

.form-input:hover {
    border-color: var(--color-primary-light);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-bg-white);
    box-shadow: 0 0 0 3px var(--color-primary-muted);
}

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

.form-note {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: var(--space-md);
    text-align: center;
}

.form-success {
    text-align: center;
    padding: var(--space-2xl);
}

.form-success svg {
    color: var(--color-primary);
    margin: 0 auto var(--space-lg);
}

.form-success-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.form-success-text {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

@media (max-width: 968px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .contact-info {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .contact-form-wrapper {
        padding: var(--space-xl);
    }
}

/* --- Footer --- */
.site-footer {
    background: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    max-width: 280px;
}

.footer-tagline {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-top: var(--space-lg);
    color: rgba(255, 255, 255, 0.65);
}

.footer-heading {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: var(--space-lg);
}

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

.footer-nav a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.75);
    transition: color var(--transition-fast);
}

.footer-nav a:hover {
    color: white;
}

.footer-address {
    font-style: normal;
    font-size: 0.9rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.75);
}

.footer-address a {
    color: rgba(255, 255, 255, 0.75);
    transition: color var(--transition-fast);
}

.footer-address a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-copyright,
.footer-legal {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-legal {
    max-width: 400px;
    text-align: right;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-legal {
        text-align: center;
        max-width: 100%;
    }
}

/* --- Animations --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll.visible:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll.visible:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll.visible:nth-child(4) { transition-delay: 0.3s; }
.animate-on-scroll.visible:nth-child(5) { transition-delay: 0.4s; }
.animate-on-scroll.visible:nth-child(6) { transition-delay: 0.5s; }