/* ═══════════════════════════════════════════════
   VendoGSM — Premium Dark UI
   Design DNA: Cyphra Purple/Cyan + Glassmorphism
   ═══════════════════════════════════════════════ */

:root {
    --bg-primary: #06060f;
    --bg-secondary: #0a0a18;
    --bg-card: rgba(14, 14, 28, 0.65);
    --bg-card-hover: rgba(20, 20, 40, 0.85);
    --border-color: rgba(138, 43, 226, 0.15);
    --border-hover: rgba(138, 43, 226, 0.35);
    --text-main: #e8eaf6;
    --text-muted: #7986a3;
    --text-dim: #4a5568;
    --accent-primary: #8a2be2;
    --accent-secondary: #00d2ff;
    --accent-glow: rgba(138, 43, 226, 0.4);
    --cyan-glow: rgba(0, 210, 255, 0.3);
    --gradient: linear-gradient(135deg, #8a2be2 0%, #00d2ff 100%);
    --gradient-warm: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%);
    --success: #10b981;
    --warning: #f59e0b;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px rgba(138, 43, 226, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ─── Ambient Background ─────────────────── */
.ambient-bg {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(138, 43, 226, 0.3), transparent);
    top: -100px; left: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 350px; height: 350px;
    background: radial-gradient(circle, rgba(0, 210, 255, 0.2), transparent);
    top: 50%; right: -100px;
    animation-delay: -7s;
}

.orb-3 {
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.15), transparent);
    bottom: -50px; left: 40%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -40px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(15px, 30px) scale(1.02); }
}

/* ─── Layout ─────────────────────────────── */
.app-container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ─── Navbar ─────────────────────────────── */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 12px 0;
    background: rgba(6, 6, 15, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-size: 1.4rem;
    font-weight: 800;
}

.brand-icon {
    font-size: 1.5rem;
}

.brand-text {
    color: var(--text-main);
}

.brand-accent {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-main);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0; right: 0;
    height: 2px;
    background: var(--gradient);
    border-radius: 1px;
}

.nav-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--success);
}

.pulse-dot {
    width: 8px; height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

/* ─── Hero ───────────────────────────────── */
.hero {
    padding: 80px 0 40px;
    text-align: center;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(138, 43, 226, 0.1);
    border: 1px solid rgba(138, 43, 226, 0.3);
    border-radius: 24px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 520px;
    margin: 0 auto 40px;
}

.hero-stats {
    display: inline-flex;
    align-items: center;
    gap: 24px;
    padding: 16px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
}

.stat-item { text-align: center; }

.stat-value {
    display: block;
    font-size: 1.3rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 2px;
}

.stat-divider {
    width: 1px;
    height: 32px;
    background: var(--border-color);
}

/* ─── Steps ──────────────────────────────── */
.steps-section {
    padding: 40px 0 60px;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.step-card {
    padding: 28px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.step-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--gradient);
    opacity: 0;
    transition: var(--transition);
}

.step-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.step-card:hover::before { opacity: 1; }

.step-number {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--accent-primary);
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.step-icon {
    font-size: 2rem;
    margin-bottom: 14px;
}

.step-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ─── Services Section ───────────────────── */
.services-section {
    padding: 20px 0 80px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 16px;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.search-container {
    position: relative;
    width: 300px;
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.85rem;
    opacity: 0.5;
}

.search-container input {
    width: 100%;
    padding: 10px 16px 10px 38px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-size: 0.85rem;
    font-family: inherit;
    outline: none;
    transition: var(--transition);
}

.search-container input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(138, 43, 226, 0.1);
}

.search-container input::placeholder {
    color: var(--text-dim);
}

/* Services Layout & Sidebar */
.services-layout {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.category-sidebar {
    width: 260px;
    flex-shrink: 0;
    position: sticky;
    top: 90px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px 16px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}

.category-sidebar::-webkit-scrollbar {
    width: 4px;
}
.category-sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.sidebar-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    padding: 0 8px;
}

.category-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.cat-item {
    width: 100%;
    text-align: left;
    padding: 10px 14px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cat-item:hover {
    background: rgba(138, 43, 226, 0.05);
    color: var(--text-main);
}

.cat-item.active {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.services-main {
    flex-grow: 1;
    min-width: 0;
}

/* Loader */
.loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 60px 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.spinner {
    width: 36px; height: 36px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 140px;
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.service-card:hover::after {
    transform: scaleX(1);
}

.service-card .svc-group {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(138, 43, 226, 0.1);
    border-radius: 4px;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
    max-width: fit-content;
}

.service-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 8px;
    color: var(--text-main);
}

.service-card .svc-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.service-card .svc-price {
    font-size: 1.4rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hidden { display: none !important; }

/* ─── Modal ──────────────────────────────── */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
}

.modal-content {
    width: 100%;
    max-width: 440px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5), var(--shadow-glow);
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
}

.modal-header h3 {
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.3;
    max-width: 320px;
}

.modal-price {
    font-size: 0.9rem;
    font-weight: 600;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: 4px;
}

.close-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-muted);
    width: 36px; height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

/* Step Indicator */
.step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 24px;
}

.step-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--border-color);
    transition: var(--transition);
}

.step-dot.active {
    background: var(--accent-primary);
    box-shadow: 0 0 10px var(--accent-glow);
}

.step-dot.completed {
    background: var(--success);
}

.step-line {
    width: 40px; height: 2px;
    background: var(--border-color);
    transition: var(--transition);
}

.step-line.completed {
    background: var(--success);
}

/* Form Inputs */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.3);
    color: var(--text-main);
    font-size: 0.9rem;
    font-family: inherit;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(138, 43, 226, 0.1);
}

.form-group input::placeholder {
    color: var(--text-dim);
}

/* Buttons */
.btn {
    width: 100%;
    padding: 13px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.primary-btn {
    background: var(--gradient);
    color: white;
}

.primary-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.success-btn {
    background: linear-gradient(135deg, #059669, #10b981);
    color: white;
}

.success-btn:hover {
    opacity: 0.9;
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

.ghost-btn {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}

.ghost-btn:hover {
    color: var(--text-main);
    border-color: var(--text-muted);
}

/* Payment & QR */
.payment-info {
    text-align: center;
    margin-bottom: 20px;
}

.payment-info h4 {
    font-size: 1.1rem;
    margin-bottom: 6px;
}

.payment-info p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.payment-info strong {
    color: var(--accent-secondary);
}

.qr-container {
    text-align: center;
    margin: 20px 0;
    padding: 20px;
    background: white;
    border-radius: var(--radius);
    display: inline-block;
    width: 100%;
}

.qr-container canvas, .qr-container img {
    display: block;
    margin: 0 auto;
}

.qr-hint {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 16px;
}

/* Success Block */
.success-block {
    text-align: center;
    padding: 20px 0;
}

.success-icon {
    font-size: 3.5rem;
    margin-bottom: 16px;
}

.success-block h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.success-block p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
}

/* ─── Footer ─────────────────────────────── */
.footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 40px 24px;
    border-top: 1px solid var(--border-color);
    color: var(--text-dim);
    font-size: 0.8rem;
}

/* ─── Responsive ─────────────────────────── */
@media (max-width: 768px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .services-grid {
        grid-template-columns: 1fr;
    }
    .nav-links {
        display: none;
    }
    .search-container {
        width: 100%;
    }
    .section-header {
        flex-direction: column;
        align-items: stretch;
    }
    .hero-stats {
        flex-direction: column;
        gap: 12px;
        padding: 20px 28px;
    }
    .stat-divider {
        width: 40px;
        height: 1px;
    }
}

@media (max-width: 480px) {
    .steps-grid {
        grid-template-columns: 1fr;
    }
    .hero {
        padding: 50px 0 30px;
    }
}

/* Receipt View & Animations */
.receipt-header {
    text-align: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}
.receipt-header h3 {
    font-size: 1.2rem;
    color: var(--text-main);
    margin-bottom: 4px;
}
.receipt-header p {
    color: var(--text-dim);
    font-size: 0.9rem;
}
.receipt-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}
.receipt-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.receipt-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.receipt-value {
    font-size: 0.95rem;
    color: var(--text-main);
    font-weight: 500;
}
.status-success {
    color: #10B981;
    font-weight: 600;
}
.status-rejected {
    color: #EF4444;
    font-weight: 600;
}
.receipt-reply-box {
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px;
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--text-main);
    white-space: pre-wrap;
    word-break: break-all;
    min-height: 80px;
    margin-bottom: 24px;
}

@keyframes pulseOpacity {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}
.processing-card .loader {
    animation: pulseOpacity 2s infinite ease-in-out;
}