/* ============================================
   GREAT PLAINS ART & ANTIQUES
   Bold editorial style — Deep Navy + Warm Gold
   ============================================ */

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

:root {
    --navy-950: #0a1128;
    --navy-900: #0f1c3f;
    --navy-800: #162a5c;
    --navy-700: #1e3a7b;
    --gold-500: #c8a44e;
    --gold-400: #d4b562;
    --gold-300: #e0c97e;
    --gold-200: #f0dfa8;
    --cream-50: #faf8f4;
    --cream-100: #f5f0e8;
    --cream-200: #ede5d6;
    --warm-gray-100: #f7f5f2;
    --warm-gray-200: #e8e3da;
    --warm-gray-400: #9e9588;
    --warm-gray-600: #6b6359;
    --warm-gray-800: #3a342e;
    --white: #ffffff;
    --black: #0a0a0a;

    --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 3px rgba(15, 28, 63, 0.08);
    --shadow-md: 0 4px 20px rgba(15, 28, 63, 0.1);
    --shadow-lg: 0 12px 40px rgba(15, 28, 63, 0.15);

    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.6;
    color: var(--warm-gray-800);
    background-color: var(--cream-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    background: var(--navy-900);
    color: var(--white);
    border-radius: var(--radius-sm);
    z-index: 1000;
    font-size: 0.875rem;
    transition: top var(--transition-fast);
}

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

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

/* --- SECTION LABELS --- */
.section-label {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold-500);
    margin-bottom: var(--space-sm);
    display: block;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 700;
    line-height: 1.15;
    color: var(--navy-900);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--warm-gray-600);
    max-width: 560px;
    line-height: 1.7;
}

/* --- NAV --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(250, 248, 244, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--cream-200);
    transition: box-shadow var(--transition-base);
}

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

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
}

.nav-logo-mark {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--navy-900);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--gold-500);
    border-radius: 50%;
    flex-shrink: 0;
}

.nav-logo-text {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--navy-900);
    line-height: 1.2;
}

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

.nav-link {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--warm-gray-800);
    letter-spacing: 0.02em;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--gold-500);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--navy-900);
}

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

.nav-link--cta {
    padding: 0.5rem 1.25rem;
    background: var(--navy-900);
    color: var(--white) !important;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.nav-link--cta::after {
    display: none;
}

.nav-link--cta:hover {
    background: var(--navy-800);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    z-index: 110;
}

.nav-toggle-bar {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--navy-900);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.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);
}

/* --- HERO --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    background: var(--cream-50);
    overflow: hidden;
}

.hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.hero-greeting {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gold-500);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.75rem, 5.5vw, 5rem);
    font-weight: 800;
    line-height: 1.05;
    color: var(--navy-900);
    margin-bottom: var(--space-md);
}

.hero-title-line {
    display: block;
}

.hero-title-line:first-child {
    color: var(--navy-900);
}

.hero-title-line:last-child {
    color: var(--gold-500);
    font-style: italic;
}

.hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.75;
    color: var(--warm-gray-600);
    max-width: 480px;
    margin-bottom: var(--space-lg);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

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

.hero-contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--warm-gray-600);
}

.hero-contact-icon {
    width: 16px;
    height: 16px;
    color: var(--gold-500);
    flex-shrink: 0;
}

.hero-right {
    position: relative;
}

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

.hero-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-image-accent {
    position: absolute;
    bottom: -12px;
    right: -12px;
    width: 60%;
    height: 40%;
    border: 3px solid var(--gold-500);
    border-radius: var(--radius-lg);
    z-index: -1;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--warm-gray-400);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    animation: float 2s ease-in-out infinite;
}

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

/* --- BUTTONS --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn--primary {
    background: var(--navy-900);
    color: var(--white);
}

.btn--primary:hover {
    background: var(--navy-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn--outline {
    background: transparent;
    color: var(--navy-900);
    border: 1.5px solid var(--navy-900);
}

.btn--outline:hover {
    background: var(--navy-900);
    color: var(--white);
    transform: translateY(-2px);
}

.btn--outline-light {
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255, 255, 255, 0.5);
}

.btn--outline-light:hover {
    background: var(--white);
    color: var(--navy-900);
    transform: translateY(-2px);
}

.btn--large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

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

.btn-icon {
    width: 18px;
    height: 18px;
}

/* --- ABOUT --- */
.about {
    padding: var(--space-3xl) 0;
    background: var(--white);
}

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

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

.about-text-col .section-title {
    margin-bottom: var(--space-md);
}

.about-text-col p {
    color: var(--warm-gray-600);
    line-height: 1.8;
    margin-bottom: var(--space-sm);
    font-size: 1.0625rem;
}

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

.about-feature {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--navy-900);
}

.about-feature-icon {
    width: 20px;
    height: 20px;
    color: var(--gold-500);
    flex-shrink: 0;
}

/* --- COLLECTIONS --- */
.collections {
    padding: var(--space-3xl) 0;
    background: var(--cream-50);
}

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

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

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

.collection-card {
    display: block;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.collection-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.collection-card-img {
    overflow: hidden;
    aspect-ratio: 4/3;
}

.collection-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.collection-card:hover .collection-card-img img {
    transform: scale(1.05);
}

.collection-card-body {
    padding: var(--space-md);
}

.collection-card-body h3 {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--navy-900);
    margin-bottom: 0.375rem;
}

.collection-card-body p {
    font-size: 0.9375rem;
    color: var(--warm-gray-600);
    line-height: 1.6;
}

/* --- VISIT --- */
.visit {
    padding: var(--space-3xl) 0;
    background: var(--white);
}

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

.visit-description {
    font-size: 1.0625rem;
    color: var(--warm-gray-600);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

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

.visit-detail {
    display: flex;
    gap: var(--space-sm);
}

.visit-detail-icon {
    width: 22px;
    height: 22px;
    color: var(--gold-500);
    flex-shrink: 0;
    margin-top: 2px;
}

.visit-detail dt {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--navy-900);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.visit-detail dd {
    font-size: 0.9375rem;
    color: var(--warm-gray-600);
    line-height: 1.7;
}

.visit-detail dd a {
    color: var(--gold-500);
    transition: color var(--transition-fast);
}

.visit-detail dd a:hover {
    color: var(--gold-400);
    text-decoration: underline;
}

.visit-image-col img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

/* --- CTA BANNER --- */
.cta-banner {
    padding: var(--space-3xl) 0;
    background: var(--navy-900);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    border: 1px solid rgba(200, 164, 78, 0.15);
    border-radius: 50%;
    aria-hidden: true;
}

.cta-banner::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    border: 1px solid rgba(200, 164, 78, 0.1);
    border-radius: 50%;
    aria-hidden: true;
}

.cta-banner-inner {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.cta-label {
    color: var(--gold-500) !important;
}

.cta-title {
    color: var(--white) !important;
}

.cta-text {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.75;
    margin-bottom: var(--space-lg);
}

.cta-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

/* --- CONTACT --- */
.contact {
    padding: var(--space-3xl) 0;
    background: var(--cream-50);
}

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

.contact-description {
    font-size: 1.0625rem;
    color: var(--warm-gray-600);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.contact-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.9375rem;
    color: var(--warm-gray-600);
}

.contact-list li a {
    color: var(--gold-500);
    transition: color var(--transition-fast);
}

.contact-list li a:hover {
    color: var(--gold-400);
    text-decoration: underline;
}

.contact-list-icon {
    width: 20px;
    height: 20px;
    color: var(--gold-500);
    flex-shrink: 0;
    margin-top: 2px;
}

/* --- FORM --- */
.contact-form {
    background: var(--white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
}

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

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--navy-900);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 0.375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--warm-gray-800);
    background: var(--cream-50);
    border: 1.5px solid var(--cream-200);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--gold-500);
    box-shadow: 0 0 0 3px rgba(200, 164, 78, 0.15);
}

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

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

.form-success {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: var(--space-sm);
    padding: var(--space-sm);
    background: rgba(200, 164, 78, 0.1);
    border: 1px solid rgba(200, 164, 78, 0.3);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    color: var(--navy-900);
}

.form-success svg {
    width: 20px;
    height: 20px;
    color: var(--gold-500);
    flex-shrink: 0;
}

/* --- FOOTER --- */
.footer {
    background: var(--navy-950);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-2xl) 0 var(--space-md);
}

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

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

.footer-brand .nav-logo-mark {
    width: 48px;
    height: 48px;
    font-size: 1.75rem;
    border-color: var(--gold-500);
}

.footer-brand-name {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--white);
    line-height: 1.3;
}

.footer-tagline {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.5);
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gold-500);
    margin-bottom: var(--space-sm);
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

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

.footer-contact address {
    font-style: normal;
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-contact a {
    color: var(--gold-500);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: var(--space-md);
    text-align: center;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.35);
}

/* --- 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);
    }
}

/* --- RESPONSIVE --- */
@media (max-width: 960px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-lg);
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-contact-strip {
        justify-content: center;
    }

    .hero-image-wrap {
        max-width: 480px;
        margin: 0 auto;
    }

    .hero-image-accent {
        display: none;
    }

    .about-grid,
    .visit-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .about-image-col {
        order: -1;
    }

    .collections-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        text-align: center;
    }

    .footer-tagline {
        max-width: none;
    }
}

@media (max-width: 640px) {
    :root {
        --space-xl: 3rem;
        --space-2xl: 4rem;
        --space-3xl: 5rem;
    }

    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(250, 248, 244, 0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-sm);
        border-bottom: 1px solid var(--cream-200);
        transform: translateY(-110%);
        opacity: 0;
        transition: transform var(--transition-base), opacity var(--transition-base);
        pointer-events: none;
    }

    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: clamp(2.25rem, 8vw, 3.5rem);
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

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

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

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

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

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