/* =========================================================
   EXCLUSIVE HAUTE COUTURE ATELIER — PRODUCT DETAIL SYSTEM
   Parity with index.html Design Tokens & Luxury UI Architecture
========================================================= */

:root {
    /* Pure Noir Canvas */
    --bg-main: #040404;
    --bg-secondary: #080808;
    --bg-card: rgba(12, 12, 14, 0.94);
    --bg-glass: rgba(6, 6, 6, 0.85);

    /* Imperial Crimson Palette */
    --primary-color: #850009;
    --primary-hover: #a3000b;
    --primary-deep: #4a0005;
    --accent-neon: #850009;
    --accent-deep: #4a0005;
    --accent-light: #a3000b;
    --accent-glow: rgba(133, 0, 9, 0.35);
    --accent-glow-deep: rgba(74, 0, 5, 0.5);

    /* Sovereign Gold Accents */
    --gold-accent: #d43737;
    --gold-light: #f5590b;
    --gold-glow: rgba(212, 55, 55, 0.22);
    --border-gold: rgba(212, 55, 55, 0.28);

    /* Editorial Typography */
    --font-heading: 'Playfair Display', serif;
    --font-subheading: 'Cinzel', serif;
    --font-body: 'Montserrat', sans-serif;
    --font-signature: 'Allura', cursive;
    --font-main: 'Montserrat', sans-serif;
    --font-accent: 'Playfair Display', serif;

    /* Text Tokens */
    --text-main: #F4F4F5;
    --text-primary: #F4F4F5;
    --text-muted: #9CA3AF;
    --text-dim: #71717A;
    --input-border: rgba(255, 255, 255, 0.08);

    /* Transitions */
    --transition-tactile: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-luxury: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-main);
    -webkit-font-smoothing: antialiased;
}

html {
    scroll-behavior: smooth;
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 120px 20px 80px;
    position: relative;
    overflow-x: hidden;
}

/* Ambient Radial Canvas Lighting */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at 15% 15%, rgba(133, 0, 9, 0.15) 0%, transparent 45%),
        radial-gradient(circle at 85% 75%, rgba(212, 175, 55, 0.08) 0%, transparent 40%),
        #040404;
    z-index: -2;
    pointer-events: none;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 0);
    background-size: 32px 32px;
    opacity: 0.35;
    z-index: -1;
    pointer-events: none;
}

/* Main Luxury Card Frame */
.portfolio-wrapper {
    max-width: 1140px;
    width: 100%;
    background: var(--bg-card);
    border-radius: 18px;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.88), 0 0 40px rgba(133, 0, 9, 0.12);
    border: 1px solid rgba(212, 55, 55, 0.25);
    padding: 40px;
    position: relative;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}

/* Header & Back Navigation */
.back-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 36px;
    padding-bottom: 22px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--font-subheading);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    transition: var(--transition-tactile);
}

.back-link i {
    color: var(--gold-accent);
    font-size: 0.85rem;
    transition: transform 0.25s ease;
}

.back-link:hover {
    color: #ffffff;
    transform: translateX(-3px);
}

.back-link:hover i {
    transform: translateX(-4px);
}

/* Luxury Cart Pill in Header */
.detail-cart-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #ffffff;
    text-decoration: none;
    font-family: var(--font-subheading);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    padding: 9px 20px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(212, 55, 55, 0.35);
    transition: var(--transition-tactile);
    backdrop-filter: blur(10px);
}

.detail-cart-btn:hover {
    border-color: var(--gold-accent);
    background: rgba(133, 0, 9, 0.25);
    transform: translateY(-1px);
    box-shadow: 0 4px 18px var(--accent-glow);
}

.detail-cart-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-deep));
    color: #ffffff;
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 700;
    min-width: 20px;
    height: 20px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

/* Layout Grid */
.main-layout-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: start;
}

@media (min-width: 900px) {
    .main-layout-grid {
        grid-template-columns: 1.05fr 0.95fr;
        gap: 50px;
    }
}

/* Left Column: Sticky Image Box Showcase */
.image-showcase-container {
    background: #080808;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
    box-shadow: var(--morphism-inner-drop);
    position: relative;
}

@media (min-width: 900px) {
    .image-showcase-container {
        position: sticky;
        top: 110px;
    }
}

.presentation-graphic {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.image-showcase-container:hover .presentation-graphic {
    transform: scale(1.02);
}

/* Luxury Drop Floating Badge on Showcase */
.showcase-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--primary-color), #4a0005);
    color: #ffffff;
    font-family: var(--font-subheading);
    font-size: 9.5px;
    font-weight: 700;
    letter-spacing: 1.5px;
    border-radius: 4px;
    text-transform: uppercase;
    z-index: 2;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.7);
}

.showcase-badge.luxury-badge {
    background: linear-gradient(135deg, #2b2208, #110e03);
    color: #f5360b;
    border-color: rgba(212, 55, 55, 0.45);
}

/* Right Column: Details Content */
.details-panel {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-meta-category {
    font-family: var(--font-subheading);
    color: var(--gold-accent);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    font-weight: 700;
    margin-bottom: 12px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.project-meta-category::before {
    content: '';
    display: inline-block;
    width: 16px;
    height: 1.5px;
    background: var(--gold-accent);
}

.project-headline {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3.2vw, 2.6rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: #ffffff;
    letter-spacing: -0.3px;
}

/* Luxury Acquisition & Pricing Block */
.acquisition-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(212, 55, 55, 0.25);
    border-radius: 12px;
    padding: 18px 24px;
    margin-bottom: 30px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.acquisition-price-col {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.acquisition-label {
    font-family: var(--font-subheading);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-muted);
    text-transform: uppercase;
}

.acquisition-price {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    color: #ffffff;
    line-height: 1;
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.acquisition-price .currency {
    color: var(--gold-accent);
    font-size: 1.6rem;
}

.acquisition-price .badge-cur {
    font-family: var(--font-body);
    font-size: 0.8rem;
    color: var(--text-dim);
    font-weight: 500;
    letter-spacing: 1px;
}

.editing-addon-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(212, 55, 55, 0.12);
    border: 1px solid rgba(212, 55, 55, 0.3);
    color: #fca5a5;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.editing-addon-pill i {
    color: var(--gold-accent);
    font-size: 0.85rem;
}

/* Sections: Description & Specs */
.section-block {
    margin-bottom: 28px;
}

.section-title {
    font-family: var(--font-subheading);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #ffffff;
    margin-bottom: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--gold-accent);
}

.project-paragraph {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
    font-weight: 400;
}

/* Tech Specs Grid */
.specs-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 12px;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
    font-size: 0.92rem;
}

.spec-label {
    color: var(--text-muted);
}

.spec-value {
    font-weight: 600;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.04);
    padding: 3px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    border: 1px solid rgba(212, 55, 55, 0.2);
    box-shadow: var(--morphism-inner);
}

/* Interactive CTA Hub */
.interactive-cta-hub {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    margin-top: 14px;
}

@media (min-width: 480px) {
    .interactive-cta-hub {
        grid-template-columns: 1fr 1fr;
    }
}

.action-button {
    padding: 16px 22px;
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 8px;
    transition: var(--transition-tactile);
    cursor: pointer;
    text-align: center;
    box-shadow: var(--morphism-drop-btn);
}

.action-button:active {
    box-shadow: var(--morphism-drop-btn-active) !important;
    transform: translateY(1px) scale(0.985) !important;
}

.action-button-cart {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-deep));
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: var(--morphism-drop-btn);
    grid-column: 1 / -1;
    font-family: var(--font-subheading);
    font-size: 0.9rem;
}

.action-button-cart:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-color));
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: var(--morphism-drop-btn-hover);
}

.action-button-primary {
    background: rgba(255, 255, 255, 0.03);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-family: var(--font-body);
    box-shadow: var(--morphism-drop-btn);
}

.action-button-primary:hover {
    background: rgba(37, 211, 102, 0.1);
    border-color: #25D366;
    color: #25D366;
    transform: translateY(-2px);
    box-shadow: var(--morphism-drop-btn-hover);
}

.action-button-secondary {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-family: var(--font-body);
    box-shadow: var(--morphism-drop-btn);
}

.action-button-secondary:hover {
    border-color: var(--gold-accent);
    color: #ffffff;
    background: rgba(212, 55, 55, 0.08);
    transform: translateY(-2px);
    box-shadow: var(--morphism-drop-btn-hover);
}

/* Toast Feedback Notification */
#detail-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: rgba(12, 12, 14, 0.96);
    color: #FFFFFF;
    padding: 14px 22px;
    border-radius: 10px;
    border: 1px solid rgba(212, 55, 55, 0.4);
    box-shadow: var(--morphism-window);
    font-size: 0.88rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateY(140%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease;
    z-index: 9999;
    backdrop-filter: blur(16px);
}

#detail-toast[style*="opacity: 1"],
#detail-toast.show {
    pointer-events: auto;
}

#detail-toast a {
    color: var(--gold-light);
    text-decoration: underline;
    font-weight: 600;
    margin-left: 8px;
}

/* =========================================================
   LUXURY MOBILE BOTTOM NAVIGATION BAR (Full Width Edge-to-Edge)
========================================================= */
.mobile-bottom-dock {
    display: flex;
    position: fixed;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    height: calc(58px + env(safe-area-inset-bottom, 0px));
    background: rgba(8, 8, 10, 0.97) !important;
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-top: 1px solid rgba(248, 113, 113, 0.22) !important;
    border-left: none !important;
    border-right: none !important;
    border-bottom: none !important;
    border-radius: 0 !important;
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.92), inset 0 1px 0 rgba(255, 255, 255, 0.04) !important;
    z-index: 2600;
    padding: 4px 6px calc(4px + env(safe-area-inset-bottom, 0px));
    box-sizing: border-box;
    align-items: center;
    justify-content: space-around;
    margin: 0 !important;
    transition: transform 0.35s var(--ease-luxury, cubic-bezier(0.16, 1, 0.3, 1)), opacity 0.35s ease;
}

@media (min-width: 992px) {
    .mobile-bottom-dock {
        display: none !important;
    }
}

.dock-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    color: #9ca3af !important;
    text-decoration: none;
    font-family: var(--font-body);
    font-size: 8px;
    font-weight: 600;
    letter-spacing: 0;
    text-transform: uppercase;
    padding: 3px 0;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: var(--transition-tactile);
    flex: 1 1 0px;
    min-width: 0;
    height: 100%;
}

.dock-item span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: clip;
    max-width: 100%;
    display: block;
    text-align: center;
    font-size: 7.5px;
    transform: scale(0.95);
    line-height: 1.1;
}

.dock-item i {
    font-size: 15px;
    color: #9ca3af;
    transition: color 0.25s ease, transform 0.2s ease;
}

.dock-item:hover {
    color: #f4f4f5 !important;
}

.dock-item:hover i {
    color: #f87171 !important;
}

.dock-item.active {
    color: #ffffff !important;
    font-weight: 700;
}

.dock-item.active i {
    color: #ef4444 !important;
    transform: translateY(-1px);
    filter: drop-shadow(0 0 8px rgba(239, 68, 68, 0.65));
}

.dock-item.active::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 2px;
    background: #ef4444;
    border-radius: 0 0 2px 2px;
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.85);
}

/* Mobile & Tablet Responsiveness */
@media (max-width: 991px) {
    body {
        padding: 95px 14px calc(70px + env(safe-area-inset-bottom, 0px));
    }

    .portfolio-wrapper {
        padding: 24px 18px;
        border-radius: 14px;
    }

    .project-headline {
        font-size: 1.75rem;
        margin-bottom: 18px;
    }

    .acquisition-box {
        padding: 14px 18px;
    }

    .acquisition-price {
        font-size: 1.9rem;
    }

    .mobile-bottom-dock {
        display: flex;
    }

    #detail-toast {
        bottom: calc(70px + env(safe-area-inset-bottom, 0px));
        right: 14px;
        left: 14px;
        justify-content: center;
    }
}