/* 
============================================================
Thira Signature "Sandstone & Soil" Stylesheet
Design System: Warm Architectural Minimalism (Premium Light Mode)
Lead UI/UX Designer & Senior CSS Architect
Bootstrap 5 Light Mode Refinement
============================================================
*/

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,700;1,400&display=swap');

:root {
    /* ── Core Light Palette ────────────────────────────── */
    --bs-body-bg: #FAFAF8;    /* Milky White */
    --bs-body-color: #43464B; /* Graphite */
    
    /* Surface Layers (depth through subtle shifts) */
    --surface-void:    #F2F2F0;   /* Slightly shaded */
    --surface-base:    #FAFAF8;   /* Body / Milky White */
    --surface-card:    #FFFFFF;   /* Cards, panels */
    --surface-raised:  #F7F7F5;   /* Elevated elements */
    --surface-overlay: #FFFFFF;   /* Modals, tooltips */
    
    /* Legacy aliases */
    --surface-linen: #FFFFFF;
    
    /* ── Earthy Accents & Metals ──────────────────────── */
    --accent-gold:       #8A6E57;   /* CTA/Button: Brown */
    --accent-gold-light: #9C826B;   /* Hover state */
    --accent-gold-dim:   #C7AD94;   /* Sandstone Accent */
    
    /* Legacy aliases */
    --accent-bronze:      #8A6E57;
    --accent-bronze-dark: #6F5846;
    --accent-slate:       #43464B;  /* In light mode, "slate" = Graphite */
    
    /* ── Typography ────────────────────────────────────── */
    --text-primary:   #43464B;     /* Graphite */
    --text-secondary: #74777C;     /* Muted Graphite */
    --text-gold:      #8A6E57;
    
    /* ── Borders & Shadows ─────────────────────────────── */
    --border-architect: #DADADA;     /* Light Gray */
    --border-gold:      #C7AD94;     /* Sandstone */
    --border-focus:     #8A6E57;
    --shadow-luxe:      0 4px 20px rgba(0, 0, 0, 0.04);
    --shadow-deep:      0 12px 40px rgba(0, 0, 0, 0.08);

    /* ── Typography Families ───────────────────────────── */
    --font-heading: 'Playfair Display', serif;
    --font-ui:      'Outfit', sans-serif;
    
    /* ── Spacing ───────────────────────────────────────── */
    --spacing-xl: 100px;
    --spacing-lg: 60px;
}

/* ── Base Reset & Typography ──────────────────────────── */

*, *::before, *::after {
    box-sizing: border-box;
}

body {
    background-color: var(--surface-base) !important;
    color: var(--text-primary);
    font-family: var(--font-ui);
    letter-spacing: -0.01em;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    min-height: 100vh;
}

h1, h2, h3, .display-main {
    font-family: var(--font-heading);
    font-weight: 400;
    text-transform: none;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.display-main {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    line-height: 1.1;
}

h4, h5, .display-sub {
    font-family: var(--font-ui);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.75rem;
    color: var(--accent-gold);
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}
a:hover { color: var(--accent-gold); }

/* ── Bootstrap Overrides ──────────────────────────────── */

.container { max-width: 1400px; }

/* ── Cards — Light Architectural Panel ───────────────── */
.card {
    background-color: var(--surface-card) !important;
    border: 1px solid var(--border-architect) !important;
    border-radius: 2px !important;
    box-shadow: var(--shadow-luxe);
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1),
                box-shadow 0.4s ease;
    color: var(--text-primary);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-deep);
}

.card-body { color: var(--text-primary); }

/* ── Primary Button — Earthy Brown ─────────────────── */
.btn-primary {
    background-color: var(--accent-gold) !important;
    border-color:     var(--accent-gold) !important;
    color: #FFFFFF !important;
    font-family: var(--font-ui);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.7rem;
    border-radius: 0px;
    padding: 14px 36px;
    transition: all 0.35s ease;
}
.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--accent-gold-light) !important;
    border-color:     var(--accent-gold-light) !important;
    color: #FFFFFF !important;
    box-shadow: 0 12px 30px rgba(138, 110, 87, 0.15) !important;
    transform: translateY(-1px);
}

/* Small primary variant */
.btn-primary.btn-sm {
    padding: 8px 20px;
    font-size: 0.65rem;
}

/* ── Secondary Button — Ghost Graphite ────────────────── */
.btn-secondary {
    background-color: transparent !important;
    border: 1px solid var(--text-primary) !important;
    color: var(--text-primary) !important;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    border-radius: 0px;
    padding: 12px 32px;
    transition: all 0.35s ease;
}
.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--text-primary) !important;
    color: #FFFFFF !important;
}

/* ── Danger Button ────────────────────────────────────── */
.btn-outline-danger {
    color: #dc3545 !important;
    border-color: transparent !important;
    background: transparent !important;
}
.btn-outline-danger:hover { color: #bb2d3b !important; }

/* ── Form Controls — Light Mode ──────────────────────── */
.form-control,
.form-select {
    background-color: var(--surface-raised) !important;
    border: 1px solid var(--border-architect) !important;
    color: var(--text-primary) !important;
    border-radius: 2px;
    padding: 14px 18px;
    font-size: 0.9rem;
    font-family: var(--font-ui);
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.form-control::placeholder { color: var(--text-secondary); opacity: 0.6; }
.form-control:focus,
.form-select:focus {
    background-color: var(--surface-card) !important;
    border-color: var(--accent-gold) !important;
    box-shadow: 0 0 0 3px rgba(138, 110, 87, 0.1) !important;
    outline: none;
}
.form-select option {
    background-color: var(--surface-card);
    color: var(--text-primary);
}

.form-label {
    text-transform: uppercase;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--accent-gold);
    margin-bottom: 10px;
}

/* ── Tables ───────────────────────────────────────────── */
.table {
    --bs-table-bg: transparent;
    --bs-table-striped-bg: rgba(0,0,0,0.01);
    --bs-table-hover-bg: rgba(200,173,148,0.1);
    border-color: var(--border-architect);
    color: var(--text-primary);
}

.table thead th {
    background-color: var(--surface-raised);
    color: var(--accent-gold);
    border-bottom: 2px solid var(--border-architect);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    padding: 20px;
    font-weight: 700;
    text-transform: uppercase;
}

/* ── Navbar — Minimalist Light ────────────────────────── */
.navbar {
    background-color: rgba(250, 250, 248, 0.95) !important;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-architect);
    padding: 12px 0;
}

.navbar-brand {
    font-family: var(--font-ui);
    font-weight: 700;
    letter-spacing: 0.5em;
    color: var(--text-primary) !important;
    font-size: 1.15rem;
}

.nav-link {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-primary) !important;
    opacity: 0.7;
    transition: opacity 0.3s ease, color 0.3s ease;
}
.nav-link:hover,
.nav-link.active { opacity: 1; color: var(--accent-gold) !important; }

.navbar-toggler {
    border: none !important;
    box-shadow: none !important;
}

/* ── Flash Alert ──────────────────────────────────────── */
.alert {
    background-color: var(--surface-raised) !important;
    border: 1px solid var(--border-gold) !important;
    color: var(--text-primary) !important;
    border-radius: 0;
}

/* ── Hero & Section ───────────────────────────────────── */
.hero-section { padding: var(--spacing-xl) 0; }
.section-title { margin-bottom: var(--spacing-lg); }

/* ── Badges ───────────────────────────────────────────── */
.badge {
    border-radius: 0;
    padding: 6px 14px;
    font-weight: 700;
    letter-spacing: 0.12em;
    font-size: 0.6rem;
}

/* ── Utility Classes ──────────────────────────────────── */
.bg-brass         { background-color: var(--accent-gold) !important; color: #FFFFFF !important; }
.text-brass       { color: var(--accent-gold) !important; }
.text-slate       { color: var(--text-primary) !important; }
.bg-surface       { background-color: var(--surface-card) !important; }
.bg-obsidian      { background-color: var(--surface-void) !important; }
.border-subtle    { border-color: var(--border-architect) !important; }
.border-architect { 
    border-color: var(--border-architect) !important; 
    border-image: linear-gradient(to right, transparent, var(--border-gold), var(--border-architect), var(--border-gold), transparent) 1;
}

.border-top.border-architect {
    border-top: 2px solid var(--border-architect) !important;
    border-image: linear-gradient(to right, transparent, var(--border-gold), var(--border-architect), var(--border-gold), transparent) 1;
}
.border-brass     { border-color: var(--border-gold) !important; }
.shadow-luxe      { box-shadow: var(--shadow-luxe) !important; }

/* ── Home Page Specific Utilities ────────────────────── */
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.category-card {
    position: relative;
    height: 400px;
    overflow: hidden;
    background-color: var(--surface-void);
    border: 1px solid var(--border-architect);
}
.category-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.category-card:hover img {
    transform: scale(1.08);
}
.category-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 2rem;
    background: linear-gradient(to top, rgba(250,250,248,0.95) 0%, rgba(250,250,248,0) 100%);
    z-index: 2;
}
.category-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}
.category-link {
    font-family: var(--font-ui);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-gold);
}

.feature-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--surface-card);
    border-top: 1px solid var(--border-architect);
    border-bottom: 1px solid var(--border-architect);
}

.feature-item { text-align: center; padding: 2rem; }
.feature-icon {
    font-size: 2rem;
    color: var(--accent-gold-dim);
    margin-bottom: 1.5rem;
}

.hero-split {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    min-height: 80vh;
    border-bottom: 1px solid var(--border-architect);
    background-color: var(--surface-base);
}
.hero-text-side {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: clamp(2rem, 8vw, 6rem);
}
.hero-image-side {
    background-size: cover;
    background-position: center;
    border-radius: 40px;
    height: 55vh !important;
    width: 90% !important;
    margin-left: -5% !important; /* Shift left towards text side */
    align-self: center !important;
    box-shadow: var(--shadow-deep);
    border: 1px solid var(--border-architect);
}

/* ── Stats & Grid Utilities ────────────────────────────── */
.grid { display: grid; gap: 2rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.stat-portal-grid {
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 3rem 0;
}
.stat-portal-item {
    text-align: center;
    flex: 1;
}
.stat-portal-value {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--accent-gold);
    line-height: 1;
    margin-bottom: 0.5rem;
    font-weight: 400;
}
.stat-portal-label {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--text-secondary);
}
.stat-portal-divider {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, transparent, var(--border-gold), transparent);
}

@media (max-width: 768px) {
    .stat-portal-grid { flex-direction: column; gap: 3rem; }
    .stat-portal-divider { display: none; }
}

.mt-xl { margin-top: 4rem; }

/* ── Scrollbar ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--surface-base); }
::-webkit-scrollbar-thumb { background: var(--border-architect); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-gold-dim); }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 768px) {
    .grid-3 { grid-template-columns: 1fr; }
    .display-main { font-size: 2.6rem; }
    .navbar { padding: 10px 0; }
}

@media (max-width: 380px) {
    body { font-size: 0.9rem; }
    .display-main { font-size: 2rem !important; }
    h1 { font-size: 1.75rem !important; }
    h2 { font-size: 1.4rem !important; }
    h3 { font-size: 1.2rem !important; }
    .page-header { padding: 1rem !important; }
    .container, .container-fluid { padding-left: 10px !important; padding-right: 10px !important; }
    .card { padding: 1rem !important; }
    .navbar-brand { font-size: 1rem; letter-spacing: 0.2em; }
    .btn-primary, .btn-secondary { padding: 10px 16px; font-size: 0.65rem; }
    .stat-portal-value { font-size: 2rem; }
    .hero-text-side { padding: 1.5rem !important; }
    table th, table td { padding: 0.75rem !important; font-size: 0.8rem; }
    .display-sub { font-size: 0.65rem; }
}