/* PPF TORINO - LUXURY AUTOMOTIVE DESIGN SYSTEM */

@import url('https://fonts.googleapis.com/css2?family=Urbanist:wght@600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    --bg-dark: #090a0d;
    --bg-surface: #111319;
    --bg-surface-elevated: #181b24;
    --bg-surface-hover: #1e222e;
    
    --accent-gold: #d4af37;
    --accent-gold-light: #f5eaae;
    --accent-gold-dark: #a3812a;
    --accent-gold-glow: rgba(212, 175, 55, 0.35);
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --border-dark: rgba(255, 255, 255, 0.08);
    --border-gold-subtle: rgba(212, 175, 55, 0.25);
    --border-gold-active: rgba(212, 175, 55, 0.75);
    
    --font-heading: 'Urbanist', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-primary);
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.65;
    font-family: var(--font-body);
}

h1, h2, h3, h4, h5, h6, .font-heading {
    font-family: var(--font-heading);
    letter-spacing: 0.01em;
}

/* Gold Metallic Text Gradient */
.text-gold-gradient {
    background: linear-gradient(135deg, #f9f1d0 0%, #d4af37 50%, #9e7f1b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gold-gradient {
    background: linear-gradient(135deg, #f3e5ab 0%, #d4af37 50%, #a3812a 100%);
}

.border-gold-subtle {
    border-color: var(--border-gold-subtle);
}

/* Glassmorphism Panels */
.glass-header {
    background: rgba(9, 10, 13, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.glass-card {
    background: rgba(17, 19, 25, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-dark);
}

.glass-card-hover {
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-card-hover:hover {
    background: rgba(24, 27, 36, 0.9);
    border-color: var(--border-gold-subtle);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.8), 0 0 20px -5px var(--accent-gold-glow);
}

/* Custom Buttons */
.btn-gold {
    background: linear-gradient(135deg, #f3e5ab 0%, #d4af37 50%, #a3812a 100%);
    color: #000000;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.25);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
}

.btn-gold:hover {
    background: linear-gradient(135deg, #ffffff 0%, #e6be44 50%, #c49a1d 100%);
    box-shadow: 0 6px 25px rgba(212, 175, 55, 0.45);
    transform: translateY(-2px);
}

.btn-outline-gold {
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: rgba(212, 175, 55, 0.03);
    font-family: var(--font-heading);
}

.btn-outline-gold:hover {
    background: var(--accent-gold);
    color: #000000;
    box-shadow: 0 0 20px var(--accent-gold-glow);
    transform: translateY(-2px);
}

/* Gallery Filter Pills */
.filter-btn {
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 9999px;
    border: 1px solid var(--border-dark);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    transition: all 0.3s ease;
    cursor: pointer;
    font-family: var(--font-body);
}

.filter-btn:hover {
    border-color: var(--border-gold-subtle);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--accent-gold);
    color: #000;
    border-color: var(--accent-gold);
    box-shadow: 0 0 15px var(--accent-gold-glow);
}

/* Interactive Before / After Slider */
.ba-container {
    position: relative;
    width: 100%;
    height: 480px;
    overflow: hidden;
    border-radius: 8px;
    border: 1px solid var(--border-gold-subtle);
    user-select: none;
}

.ba-img-after {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ba-img-before-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    overflow: hidden;
    z-index: 10;
    border-right: 2px solid var(--accent-gold);
    box-shadow: 4px 0 20px rgba(0,0,0,0.6);
}

.ba-img-before {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ba-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 40px;
    margin-left: -20px;
    z-index: 20;
    cursor: ew-resize;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ba-handle-button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-gold);
    color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    box-shadow: 0 0 20px rgba(212,175,55,0.8);
}

/* FAQ Accordion Styling */
.faq-item {
    transition: all 0.3s ease;
    border: 1px solid var(--border-dark);
    background-color: var(--bg-surface);
}

.faq-item.active {
    border-color: var(--border-gold-subtle);
    background-color: var(--bg-surface-elevated);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0, 1, 0, 1);
}

.faq-item.active .faq-content {
    max-height: 600px;
    transition: max-height 0.4s ease-in-out;
}

.faq-icon {
    transition: transform 0.3s ease, color 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
    color: var(--accent-gold);
}

/* Reveal on Scroll Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: #2a2e3d;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-gold);
}

/* Floating WhatsApp / Chat Button Pulse */
@keyframes goldPulse {
    0% { box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.5); }
    70% { box-shadow: 0 0 0 15px rgba(212, 175, 55, 0); }
    100% { box-shadow: 0 0 0 0 rgba(212, 175, 55, 0); }
}

.pulse-gold {
    animation: goldPulse 2s infinite;
}