:root {
    --bg-color: #0b0d11;
    --bg-secondary: #12151c;
    --bg-tertiary: #191e28;
    --panel-bg: rgba(18, 22, 31, 0.72);
    --border-color: rgba(255, 255, 255, 0.1);
    --border-light: rgba(255, 255, 255, 0.05);
    --accent: #d4af37;
    --accent-hover: #e6c555;
    --accent-glow: rgba(212, 175, 55, 0.25);
    --accent-dim: rgba(212, 175, 55, 0.15);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --card-bg: rgba(22, 27, 38, 0.65);
    --font-heading: 'Cinzel', 'Noto Serif JP', serif;
    --font-body: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow-x: hidden;
    overflow-y: auto;
    line-height: 1.6;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #090a0d;
}
::-webkit-scrollbar-thumb {
    background: #252c3b;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.floating-nav {
    position: fixed;
    top: 20px;
    left: 28px;
    right: 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    pointer-events: none;
    transition: all 0.3s ease;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    pointer-events: auto;
    text-decoration: none;
    cursor: pointer;
}

.logo-badge {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(14, 18, 26, 0.7);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--border-color);
    padding: 8px 18px;
    border-radius: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.logo h1 {
    font-size: 1.25rem;
    margin: 0;
    letter-spacing: 1px;
    font-family: var(--font-body);
    font-weight: 300;
}
.logo h1 strong {
    font-weight: 700;
    color: var(--accent);
}

.glass-pill {
    background: rgba(14, 18, 26, 0.7);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--border-color);
    border-radius: 40px;
    padding: 10px 22px;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 18px;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05), 0 15px 35px rgba(0, 0, 0, 0.4);
}

.nav-links a, .nav-links button {
    background: transparent;
    border: none;
    color: var(--text-primary);
    text-decoration: none;
    cursor: pointer;
    font-size: 0.88rem;
    font-weight: 500;
    transition: all 0.2s ease;
    padding: 4px 6px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.nav-links a:hover, .nav-links button:hover {
    color: var(--accent);
}

.nav-auth-btn {
    background: var(--accent-dim) !important;
    border: 1px solid var(--accent) !important;
    color: var(--accent) !important;
    padding: 6px 14px !important;
    border-radius: 20px;
}
.nav-auth-btn:hover {
    background: var(--accent) !important;
    color: #000 !important;
}

/* ==========================================================================
   HERO CONFIGURATOR SECTION
   ========================================================================== */
.hero-section {
    position: relative;
    width: 100vw;
    height: 100vh;
    min-height: 760px;
    background: #080a0e;
    overflow: hidden;
}

#canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Hero Branding Overlay */
.hero-branding-tag {
    position: absolute;
    top: 95px;
    left: 35px;
    z-index: 10;
    pointer-events: none;
    max-width: 440px;
}
.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.72rem;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--accent);
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    padding: 5px 12px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    margin-bottom: 12px;
    font-weight: 600;
}
.hero-title {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    font-weight: 400;
    line-height: 1.15;
    margin: 0 0 10px 0;
    letter-spacing: 0.5px;
    text-shadow: 0 4px 15px rgba(0,0,0,0.8);
}
.hero-title span {
    color: var(--accent);
    font-style: italic;
}
.hero-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
    text-shadow: 0 2px 10px rgba(0,0,0,0.8);
}

/* Viewport Controls Bar (Floating Left) */
.viewport-control-bar {
    position: absolute;
    left: 35px;
    bottom: 45px;
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: auto;
}

.viewport-group-pill {
    background: rgba(14, 18, 26, 0.75);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    padding: 8px 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}
.viewport-group-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    font-weight: 700;
    margin-right: 4px;
}

.mode-btn, .option-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
    border-radius: 20px;
    padding: 6px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}
.mode-btn:hover, .option-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}
.mode-btn.active, .option-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #0b0d11;
    font-weight: 700;
    box-shadow: 0 0 15px var(--accent-glow);
}

/* Floating 3D Tools (Bottom Center / Zoom) */
.viewport-tools-bottom {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 35px;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 16px;
    pointer-events: auto;
}

.hint-pill {
    background: rgba(14, 18, 26, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    padding: 6px 16px;
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.hint-pill svg {
    color: var(--accent);
}

.scroll-indicator-btn {
    background: rgba(14, 18, 26, 0.75);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 30px;
    padding: 8px 18px;
    font-size: 0.78rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}
.scroll-indicator-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(2px);
}
.scroll-indicator-btn svg {
    animation: bounceDown 2s infinite ease-in-out;
}

@keyframes bounceDown {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(4px); }
}

/* Floating Open Panel Trigger */
#open-panel-btn {
    position: absolute;
    top: 95px;
    right: 35px;
    z-index: 15;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    padding: 0;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}
#open-panel-btn:hover {
    transform: scale(1.08);
    border-color: var(--accent);
}

/* Floating Sidebar Configuration Tool */
.glass-panel {
    position: absolute;
    top: 95px;
    right: 35px;
    bottom: 35px;
    width: 390px;
    background: rgba(14, 18, 26, 0.78);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid var(--border-color);
    border-radius: 28px;
    padding: 26px;
    z-index: 20;
    display: flex;
    flex-direction: column;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05), 0 30px 60px -12px rgba(0, 0, 0, 0.75);
    overflow-y: auto;
    box-sizing: border-box;
    transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
}

.glass-panel.collapsed {
    transform: translateX(125%);
    opacity: 0;
    pointer-events: none;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 22px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border-color);
}
.panel-header h2 {
    font-size: 1.05rem;
    letter-spacing: 2px;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
    text-transform: uppercase;
}
.panel-header-badge {
    font-size: 0.68rem;
    background: var(--accent-dim);
    color: var(--accent);
    padding: 3px 8px;
    border-radius: 12px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    margin-left: 8px;
}

.controls-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.control-group label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.num-input {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    color: var(--accent);
    width: 65px;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    text-align: center;
    outline: none;
    transition: border-color 0.2s;
}
.num-input:focus {
    border-color: var(--accent);
}
.num-input::-webkit-outer-spin-button,
.num-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.num-input[type=number] {
    -moz-appearance: textfield;
}

input[type=range] {
    width: 100%;
    appearance: none;
    background: rgba(255, 255, 255, 0.08);
    height: 5px;
    border-radius: 3px;
    outline: none;
}
input[type=range]::-webkit-slider-thumb {
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-glow);
    transition: transform 0.15s;
}
input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

select {
    width: 100%;
    padding: 10px 14px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    color: white;
    border-radius: 8px;
    font-size: 0.9rem;
    appearance: none;
    outline: none;
    cursor: pointer;
    box-sizing: border-box;
    transition: border-color 0.2s;
}
select:focus {
    border-color: var(--accent);
}

.obstruction-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.25);
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}
.obstruction-box span {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

/* Switch css */
.switch {
    position: relative;
    display: inline-block;
    width: 42px;
    height: 22px;
}
.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.1);
    transition: .3s;
}
.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-secondary);
    transition: .3s;
}
input:checked + .slider {
    background-color: var(--accent);
}
input:checked + .slider:before {
    transform: translateX(20px);
    background-color: #000;
}
.slider.round {
    border-radius: 22px;
}
.slider.round:before {
    border-radius: 50%;
}

.checkout-section {
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid var(--border-color);
}
.price-estimate {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.area-display span, .area-display strong {
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.price-estimate strong {
    font-size: 1.35rem;
    color: var(--accent);
}

.primary-btn {
    width: 100%;
    padding: 14px;
    background: var(--accent);
    color: #0b0d11;
    border: none;
    border-radius: 10px;
    font-size: 0.92rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.primary-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px var(--accent-glow);
}

.secondary-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-sizing: border-box;
    margin-top: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.secondary-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ==========================================================================
   PAGE SECTIONS GENERAL
   ========================================================================== */
.section-wrapper {
    position: relative;
    max-width: 1320px;
    margin: 0 auto;
    padding: 110px 35px;
}

.section-header {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 65px auto;
}

.section-kanji-badge {
    display: inline-block;
    font-family: 'Noto Serif JP', serif;
    font-size: 1.6rem;
    color: var(--accent);
    opacity: 0.45;
    margin-bottom: 6px;
    letter-spacing: 4px;
}

.section-tag {
    font-size: 0.75rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 8px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 400;
    margin: 0 0 16px 0;
    color: var(--text-primary);
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ==========================================================================
   01. ARCHITECTURAL APPLICATIONS SHOWCASE
   ========================================================================== */
.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}

.app-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.35s ease;
    display: flex;
    flex-direction: column;
}
.app-card:hover {
    transform: translateY(-6px);
    border-color: rgba(212, 175, 55, 0.4);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.app-card-visual {
    height: 220px;
    background: #151a24;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.app-card-visual svg {
    opacity: 0.85;
    transition: transform 0.5s ease;
}
.app-card:hover .app-card-visual svg {
    transform: scale(1.05);
}

.app-card-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(14, 18, 26, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 4px 10px;
    border-radius: 20px;
    text-transform: uppercase;
}

.app-card-content {
    padding: 26px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.app-card-content h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    margin: 0 0 10px 0;
    color: var(--text-primary);
}
.app-card-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0 0 20px 0;
    flex: 1;
}

.app-card-specs {
    display: flex;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
    margin-bottom: 20px;
}
.app-spec-item {
    font-size: 0.78rem;
    color: var(--text-muted);
}
.app-spec-item strong {
    display: block;
    color: var(--text-primary);
    font-size: 0.88rem;
    font-weight: 600;
}

.app-card-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--accent);
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    width: 100%;
}
.app-card-btn:hover {
    background: var(--accent);
    color: #0b0d11;
}

/* ==========================================================================
   02. PATTERNS COMPENDIUM
   ========================================================================== */
.patterns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.pattern-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 24px;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.pattern-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}
.pattern-card.active {
    border-color: var(--accent);
    box-shadow: 0 0 25px var(--accent-glow);
}

.pattern-graphic {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    background: rgba(11, 14, 20, 0.5);
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.pattern-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin: 0 0 6px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.pattern-kanji {
    font-size: 0.95rem;
    color: var(--accent);
    font-family: 'Noto Serif JP', serif;
}

.pattern-meaning {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 10px;
}
.pattern-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0 0 18px 0;
    line-height: 1.5;
}

.pattern-trigger-btn {
    font-size: 0.78rem;
    color: var(--accent);
    background: var(--accent-dim);
    border: 1px solid rgba(212, 175, 55, 0.3);
    padding: 6px 12px;
    border-radius: 6px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}
.pattern-card:hover .pattern-trigger-btn {
    background: var(--accent);
    color: #0b0d11;
}

/* ==========================================================================
   03. TIMBER & MATERIALITY
   ========================================================================== */
.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.material-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 24px;
    transition: all 0.3s ease;
}
.material-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.material-swatch-box {
    height: 100px;
    border-radius: 12px;
    margin-bottom: 18px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
}
.swatch-dark-oak {
    background: linear-gradient(135deg, #2b180d 0%, #3d2314 50%, #1f1109 100%);
}
.swatch-light-birch {
    background: linear-gradient(135deg, #e4caa4 0%, #d2b48c 50%, #c4a175 100%);
}
.swatch-walnut {
    background: linear-gradient(135deg, #442f26 0%, #5c4033 50%, #38241b 100%);
}
.swatch-hinoki {
    background: linear-gradient(135deg, #f5e4c8 0%, #ebd3ad 50%, #ddbe8c 100%);
}

.material-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin: 0 0 6px 0;
}
.material-origin {
    font-size: 0.76rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    font-weight: 700;
}
.material-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0 0 16px 0;
}
.material-traits {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.material-traits li {
    font-size: 0.72rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 4px 8px;
    border-radius: 6px;
    color: var(--text-muted);
}

/* ==========================================================================
   04. ENGINEERING & ARCHITECTURAL SPECS
   ========================================================================== */
.specs-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.spec-block h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin: 0 0 18px 0;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}
.spec-block p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    margin: 0 0 20px 0;
}

.spec-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.spec-row {
    display: flex;
    justify-content: space-between;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.88rem;
}
.spec-row span {
    color: var(--text-muted);
}
.spec-row strong {
    color: var(--text-primary);
}

.downloads-box {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 24px;
}
.download-pill {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
    cursor: pointer;
}
.download-pill:hover {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
}

/* ==========================================================================
   05. INTERACTIVE ESTIMATION & COMMISSION CALCULATOR
   ========================================================================== */
.calc-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
    max-width: 900px;
    margin: 0 auto;
}
.calc-inputs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 25px;
}
.calc-input-box label {
    display: block;
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    font-weight: 700;
}
.calc-input-box input, .calc-input-box select {
    width: 100%;
    padding: 12px;
    background: rgba(0,0,0,0.4);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: white;
    font-size: 0.95rem;
}

.calc-summary-row {
    background: rgba(14, 18, 26, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 22px;
    display: flex;
    justify-content: space-around;
    text-align: center;
    margin-bottom: 25px;
}
.calc-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}
.calc-stat-val {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
}

/* ==========================================================================
   06. FULL ARCHITECTURAL SITE MAP & DIRECTORY
   ========================================================================== */
.sitemap-section {
    background: linear-gradient(180deg, var(--bg-color) 0%, #0d1017 100%);
    border-top: 1px solid var(--border-color);
}

.sitemap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 36px;
    margin-top: 40px;
}

.sitemap-col h4 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    margin: 0 0 16px 0;
    color: var(--text-primary);
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 10px;
}
.sitemap-col-num {
    font-size: 0.72rem;
    color: var(--accent);
    font-family: var(--font-body);
    font-weight: 700;
}

.sitemap-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sitemap-col ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.sitemap-col ul li a:hover {
    color: var(--accent);
    transform: translateX(3px);
}
.sitemap-badge {
    font-size: 0.65rem;
    background: var(--accent-dim);
    color: var(--accent);
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 700;
}

/* ==========================================================================
   GLOBAL FOOTER
   ========================================================================== */
.site-footer {
    background: #080a0e;
    border-top: 1px solid var(--border-color);
    padding: 60px 35px 40px 35px;
}
.footer-inner {
    max-width: 1320px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 25px;
}
.footer-copy {
    font-size: 0.82rem;
    color: var(--text-muted);
}
.footer-links {
    display: flex;
    gap: 20px;
}
.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.82rem;
    transition: color 0.2s;
}
.footer-links a:hover {
    color: var(--accent);
}

/* ==========================================================================
   MODALS
   ========================================================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}
.modal-content {
    background: #151a24;
    padding: 40px;
    border-radius: 20px;
    width: 100%;
    max-width: 440px;
    border: 1px solid var(--border-color);
    position: relative;
    box-sizing: border-box;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.7);
}
.close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.2s;
}
.close-btn:hover {
    color: white;
}

input[type=email], input[type=password] {
    width: 100%;
    padding: 12px 14px;
    margin-bottom: 15px;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border-color);
    color: white;
    border-radius: 8px;
    box-sizing: border-box;
}

.designs-grid {
    display: grid;
    gap: 15px;
    max-height: 400px;
    overflow-y: auto;
}
.design-card {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    padding: 15px;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.design-card button {
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 8px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
}
.design-card button:hover {
    background: var(--accent);
    color: #000;
}

.hidden {
    display: none !important;
}
.success-text {
    color: #10b981;
    font-size: 0.9rem;
    text-align: center;
}

/* ==========================================================================
   RESPONSIVE QUERIES
   ========================================================================== */
@media (max-width: 1024px) {
    .glass-panel {
        width: 340px;
        right: 20px;
        top: 85px;
        bottom: 20px;
    }
    .specs-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .floating-nav {
        left: 15px;
        right: 15px;
        top: 15px;
    }
    .hero-branding-tag {
        top: 80px;
        left: 20px;
        max-width: calc(100vw - 40px);
    }
    .hero-title {
        font-size: 1.8rem;
    }
    .viewport-control-bar {
        left: 20px;
        bottom: 85px;
    }
    .glass-panel {
        width: calc(100vw - 30px);
        right: 15px;
        left: 15px;
        top: 80px;
        bottom: 20px;
    }
    .calc-inputs-grid {
        grid-template-columns: 1fr;
    }
    .calc-summary-row {
        flex-direction: column;
        gap: 15px;
    }
}