/* 
   ==================================================
   DESIGN SYSTEM: Indexed Signal
   Brand: galleryviewnst
   ==================================================
*/

:root {
    /* Colour Palette */
    --c-deep-forest: #173B35;
    --c-pine: #24564D;
    --c-moss: #68775B;
    --c-lime-paper: #DCE3C5;
    --c-clay: #B96745;
    --c-apricot: #E5B58F;
    --c-ink-brown: #302B27;
    --c-parchment: #EFE7D8;
    --c-mist: #D9E1DE;
    --c-muted-slate: #66716E;
    --c-soft-gold: #C9A45C;

    /* Typography */
    --font-heading: "Georgia", "Times New Roman", serif;
    --font-body: "Helvetica Neue", Arial, sans-serif;
    --font-mono: "Courier New", Courier, monospace;

    /* Spacing & Layout */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    --container-width: 1200px;
    --border-thin: 1px solid var(--c-ink-brown);
    --border-light: 1px solid var(--c-muted-slate);
}

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

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

body {
    background-color: var(--c-parchment);
    color: var(--c-ink-brown);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: normal;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
    color: var(--c-deep-forest);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p { margin-bottom: var(--space-sm); }
a { color: var(--c-pine); text-decoration: none; transition: color 0.2s ease; }
a:hover, a:focus { color: var(--c-clay); }
ul, ol { margin-bottom: var(--space-sm); padding-left: var(--space-md); }

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

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

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.bg-lime { background-color: var(--c-lime-paper); }
.bg-mist { background-color: var(--c-mist); }
.bg-forest { background-color: var(--c-deep-forest); color: var(--c-parchment); }
.bg-forest h1, .bg-forest h2, .bg-forest h3 { color: var(--c-parchment); }
.bg-clay { background-color: var(--c-clay); color: var(--c-parchment); }
.bg-clay h1, .bg-clay h2, .bg-clay h3 { color: var(--c-parchment); }
.text-gold { color: var(--c-soft-gold); }

.section-pad { padding: var(--space-lg) 0; }
.ruled-bottom { border-bottom: var(--border-thin); }
.ruled-top { border-top: var(--border-thin); }

/* Focus States */
*:focus-visible {
    outline: 2px solid var(--c-clay);
    outline-offset: 2px;
}

/* ==================================================
   HEADER: Index Bar Header
   ================================================== */
.header-wrapper {
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: var(--border-thin);
}

.top-bar {
    background-color: var(--c-deep-forest);
    color: var(--c-soft-gold);
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
}

.main-nav {
    background-color: var(--c-parchment);
    padding: var(--space-sm) 0;
    position: relative;
}

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

.brand-area {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--c-deep-forest);
    font-weight: bold;
}

.brand-descriptor {
    font-size: 0.75rem;
    color: var(--c-muted-slate);
    font-family: var(--font-mono);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links li { position: relative; }

.nav-links a {
    color: var(--c-ink-brown);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.nav-links a.active {
    color: var(--c-deep-forest);
}

.nav-links a.active::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 50%;
    transform: translateY(-50%);
    height: 60%;
    width: 3px;
    background-color: var(--c-clay);
}

.btn-cta {
    display: inline-block;
    border: var(--border-thin);
    background-color: var(--c-parchment);
    color: var(--c-ink-brown);
    padding: 0.5rem 1rem;
    text-transform: uppercase;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-cta:hover {
    background-color: var(--c-ink-brown);
    color: var(--c-parchment);
}

.index-line {
    height: 1px;
    background-color: var(--c-muted-slate);
    margin-top: var(--space-sm);
    width: 100%;
}

/* Mobile Nav */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-icon {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--c-ink-brown);
    position: relative;
}

.menu-icon::before, .menu-icon::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 2px;
    background-color: var(--c-ink-brown);
    left: 0;
}
.menu-icon::before { top: -8px; }
.menu-icon::after { top: 8px; }

.mobile-menu-panel {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--c-deep-forest);
    z-index: 2000;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    padding: var(--space-md);
    overflow-y: auto;
}

.mobile-menu-panel.open {
    transform: translateX(0);
}

.close-menu {
    align-self: flex-end;
    background: none;
    border: none;
    color: var(--c-parchment);
    font-size: 2rem;
    cursor: pointer;
    margin-bottom: var(--space-lg);
}

.mobile-nav-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-nav-links li {
    margin-bottom: var(--space-md);
}

.mobile-nav-links a {
    color: var(--c-parchment);
    font-family: var(--font-heading);
    font-size: 2rem;
    display: block;
}

.mobile-nav-links a.active {
    color: var(--c-soft-gold);
    border-left: 4px solid var(--c-soft-gold);
    padding-left: 1rem;
}

/* ==================================================
   HOMEPAGE SPECIFICS
   ================================================== */
.hero-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: center;
    border-bottom: var(--border-thin);
}

.hero-content {
    padding: var(--space-xl) 0;
}

.catalogue-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    border: 1px solid var(--c-muted-slate);
    padding: 0.25rem 0.5rem;
    margin-bottom: var(--space-sm);
    color: var(--c-muted-slate);
}

.hero-content h1 {
    font-size: clamp(3rem, 6vw, 5rem);
    margin-bottom: var(--space-md);
}

.hero-notice {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background-color: var(--c-mist);
    padding: 1rem;
    border-left: 4px solid var(--c-clay);
    margin-top: var(--space-md);
}

.hero-visual {
    background-color: var(--c-lime-paper);
    height: 100%;
    padding: var(--space-lg);
    border-left: var(--border-thin);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.directory-index-list {
    list-style: none;
    padding: 0;
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--c-pine);
    line-height: 1.8;
}

.directory-index-list span {
    color: var(--c-clay);
    margin-right: 1rem;
}

.info-card {
    background-color: var(--c-parchment);
    border: var(--border-thin);
    padding: 1.5rem;
    margin-top: var(--space-lg);
    font-size: 0.9rem;
}

/* ==================================================
   COMPONENTS
   ================================================== */

/* Profile Cards (Archive Style) */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
}

.profile-card {
    border: var(--border-thin);
    background-color: var(--c-parchment);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.profile-card:hover {
    transform: translateY(-4px);
    box-shadow: 4px 4px 0 var(--c-mist);
}

.card-header {
    padding: 1rem;
    border-bottom: 1px solid var(--c-muted-slate);
    background-color: var(--c-mist);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-cat {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--c-pine);
}

.card-body {
    padding: 1.5rem;
    flex-grow: 1;
}

.card-body h3 {
    margin-bottom: 0.5rem;
}

.card-note {
    font-size: 0.85rem;
    color: var(--c-muted-slate);
    margin-bottom: 1rem;
    border-left: 2px solid var(--c-clay);
    padding-left: 0.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--c-muted-slate);
}

.card-link {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-link::after {
    content: '→';
}

/* No-Ranking Index Component */
.no-ranking-index {
    border: var(--border-thin);
    background-color: var(--c-parchment);
    margin: var(--space-md) 0;
}

.nri-header {
    background-color: var(--c-deep-forest);
    color: var(--c-parchment);
    padding: 1rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.85rem;
}

.nri-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nri-list li {
    padding: 1rem;
    border-bottom: var(--border-light);
    display: flex;
    align-items: baseline;
}

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

.nri-num {
    font-family: var(--font-mono);
    color: var(--c-clay);
    margin-right: 1rem;
    font-size: 0.9rem;
}

/* Profile Snapshot Panel */
.profile-snapshot {
    border: var(--border-thin);
    background-color: var(--c-lime-paper);
    padding: 1.5rem;
}

.snapshot-item {
    margin-bottom: 1.5rem;
}

.snapshot-item:last-child {
    margin-bottom: 0;
}

.snap-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--c-moss);
    display: block;
    margin-bottom: 0.25rem;
}

.snap-value {
    font-weight: bold;
    color: var(--c-deep-forest);
}

/* Device Matrix Table */
.device-matrix {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-md) 0;
    font-size: 0.9rem;
}

.device-matrix th, .device-matrix td {
    border: var(--border-thin);
    padding: 1rem;
    text-align: left;
}

.device-matrix th {
    background-color: var(--c-pine);
    color: var(--c-parchment);
    font-family: var(--font-mono);
    font-weight: normal;
    text-transform: uppercase;
}

.device-matrix tr:nth-child(even) {
    background-color: var(--c-mist);
}

/* Guide List */
.guide-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-sm);
}

.guide-item {
    border: var(--border-light);
    padding: 1rem;
    display: flex;
    flex-direction: column;
}

.guide-cat {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--c-clay);
    margin-bottom: 0.5rem;
}

.guide-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--c-ink-brown);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: var(--border-thin);
    background-color: var(--c-parchment);
    font-family: var(--font-body);
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--c-clay);
    box-shadow: 0 0 0 1px var(--c-clay);
}

textarea.form-control {
    resize: vertical;
    min-height: 150px;
}

/* Filter Controls */
.filter-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--space-md);
}

.filter-btn {
    background: none;
    border: 1px solid var(--c-muted-slate);
    padding: 0.5rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn.active, .filter-btn:hover {
    background-color: var(--c-deep-forest);
    color: var(--c-parchment);
    border-color: var(--c-deep-forest);
}

.search-field {
    width: 100%;
    max-width: 400px;
    padding: 0.75rem;
    border: var(--border-thin);
    margin-bottom: var(--space-md);
    font-family: var(--font-body);
}

/* Profile Page Layout */
.profile-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-lg);
}

/* Glossary Layout */
.glossary-list {
    columns: 2;
    column-gap: var(--space-lg);
}
.glossary-term {
    break-inside: avoid;
    margin-bottom: var(--space-md);
}

/* ==================================================
   FOOTER: Directory Archive Footer
   ================================================== */
.site-footer {
    background-color: var(--c-deep-forest);
    color: var(--c-mist);
    padding: var(--space-lg) 0 2rem 0;
    border-top: 4px solid var(--c-soft-gold);
    font-size: 0.9rem;
}

.footer-top-notice {
    font-family: var(--font-mono);
    text-transform: uppercase;
    color: var(--c-soft-gold);
    margin-bottom: var(--space-md);
    letter-spacing: 0.05em;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.footer-col h4 {
    color: var(--c-parchment);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--c-pine);
    padding-bottom: 0.5rem;
}

.footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    color: var(--c-mist);
}

.footer-col a:hover {
    color: var(--c-soft-gold);
}

.footer-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--c-parchment);
    margin-bottom: 0.25rem;
}

.footer-bottom {
    border-top: 1px solid var(--c-pine);
    padding-top: var(--space-sm);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--c-muted-slate);
}

.cookie-trigger {
    background: none;
    border: none;
    color: var(--c-mist);
    text-decoration: underline;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    padding: 0;
    text-align: left;
}

/* ==================================================
   COOKIE BANNER
   ================================================== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--c-ink-brown);
    color: var(--c-parchment);
    padding: 1.5rem;
    z-index: 9000;
    box-shadow: 0 -4px 10px rgba(0,0,0,0.2);
    display: none;
    border-top: 2px solid var(--c-clay);
}

.cookie-banner.active {
    display: block;
}

.cookie-content {
    max-width: var(--container-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 768px) {
    .cookie-content {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.cookie-text p {
    font-size: 0.9rem;
    margin: 0;
}

.cookie-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.btn-cookie {
    background-color: transparent;
    color: var(--c-parchment);
    border: 1px solid var(--c-muted-slate);
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    transition: all 0.2s;
}

.btn-cookie.primary {
    background-color: var(--c-clay);
    border-color: var(--c-clay);
}

.btn-cookie:hover {
    background-color: var(--c-mist);
    color: var(--c-ink-brown);
}

/* Cookie Preferences Modal */
.cookie-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(48, 43, 39, 0.8);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
}

.cookie-modal.active {
    display: flex;
}

.cookie-modal-content {
    background-color: var(--c-parchment);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2rem;
    border: var(--border-thin);
}

.cookie-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: var(--border-thin);
    padding-bottom: 1rem;
}

.pref-group {
    margin-bottom: 1.5rem;
}
.pref-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

/* ==================================================
   RESPONSIVE DESIGN (Media Queries)
   ================================================== */
@media (max-width: 1200px) {
    .container { padding: 0 2rem; }
}

@media (max-width: 768px) {
    .nav-links, .btn-cta.desktop-only { display: none; }
    .menu-toggle { display: block; }
    
    .hero-section {
        grid-template-columns: 1fr;
        border-bottom: none;
    }
    
    .hero-visual {
        border-left: none;
        border-top: var(--border-thin);
    }
    
    .profile-layout {
        grid-template-columns: 1fr;
    }
    
    .glossary-list {
        columns: 1;
    }

    .device-matrix {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 3rem;
        --space-xl: 4rem;
    }
    .container { padding: 0 1rem; }
    .hero-content h1 { font-size: 2.5rem; }
    .card-footer { padding: 1rem; }
}