/* =====================================================
   DTCbr Design System v4.1
   ===================================================== */

/* --- Design Tokens --- */
:root {
    --dtc-bg-primary: #0B1120;
    --dtc-bg-secondary: #111D32;
    --dtc-bg-tertiary: #162033;
    --dtc-surface-glass: rgba(17, 29, 50, 0.7);
    --dtc-border: rgba(255,255,255,0.06);
    --dtc-border-hover: rgba(255,255,255,0.12);
    --dtc-border-glow: rgba(0, 123, 255, 0.3);
    --dtc-blue: #007BFF;
    --dtc-blue-hover: #338FFF;
    --dtc-blue-dark: #0056cc;
    --dtc-cyan: #00BCD4;
    --dtc-text-primary: #F0F4F8;
    --dtc-text-secondary: #8899AA;
    --dtc-text-muted: #556677;
    --dtc-success: #00C48C;
    --dtc-warning: #FFB800;
    --dtc-danger: #FF4757;
    --dtc-gold: #FFD700;
    --dtc-radius-sm: 8px;
    --dtc-radius-md: 12px;
    --dtc-radius-lg: 16px;
    --dtc-radius-xl: 24px;
    --dtc-shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
    --dtc-shadow-md: 0 8px 32px rgba(0,0,0,0.3);
    --dtc-shadow-lg: 0 16px 48px rgba(0,0,0,0.4);
    --dtc-shadow-glow: 0 0 20px rgba(0,123,255,0.15);
    --dtc-shadow-glow-strong: 0 0 30px rgba(0,123,255,0.25);
    --dtc-glass-blur: blur(20px);
    --dtc-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --dtc-transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; }

body {
    font-family: 'Poppins', sans-serif;
    background: var(--dtc-bg-primary);
    color: var(--dtc-text-primary);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--dtc-blue); text-decoration: none; transition: var(--dtc-transition-fast); }
a:hover { color: var(--dtc-blue-hover); }

/* --- Typography --- */
.text-display { font-size: 3rem; font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; }
.text-h1 { font-size: 2.25rem; font-weight: 700; line-height: 1.2; }
.text-h2 { font-size: 1.75rem; font-weight: 600; line-height: 1.3; }
.text-h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.4; }
.text-h4 { font-size: 1rem; font-weight: 600; line-height: 1.5; }
.text-body { font-size: 0.95rem; font-weight: 400; line-height: 1.6; }
.text-small { font-size: 0.85rem; font-weight: 400; line-height: 1.5; }
.text-caption { font-size: 0.75rem; font-weight: 400; line-height: 1.4; color: var(--dtc-text-muted); }
.text-gradient {
    background: linear-gradient(135deg, var(--dtc-blue) 0%, var(--dtc-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.text-muted-dtc { color: var(--dtc-text-muted); }
.text-secondary-dtc { color: var(--dtc-text-secondary); }

/* --- Glassmorphism --- */
.glass-card {
    background: var(--dtc-surface-glass);
    backdrop-filter: var(--dtc-glass-blur);
    -webkit-backdrop-filter: var(--dtc-glass-blur);
    border: 1px solid var(--dtc-border);
    border-radius: var(--dtc-radius-lg);
    transition: var(--dtc-transition);
}

.glass-card-elevated {
    background: var(--dtc-surface-glass);
    backdrop-filter: var(--dtc-glass-blur);
    -webkit-backdrop-filter: var(--dtc-glass-blur);
    border: 1px solid var(--dtc-border);
    border-radius: var(--dtc-radius-lg);
    box-shadow: var(--dtc-shadow-glow);
    transition: var(--dtc-transition);
}

.glass-card:hover, .glass-card-elevated:hover {
    border-color: var(--dtc-border-hover);
    box-shadow: var(--dtc-shadow-glow);
    transform: translateY(-2px);
}

/* --- Navbar --- */
.dtc-navbar {
    background: rgba(11, 17, 32, 0.85);
    backdrop-filter: var(--dtc-glass-blur);
    -webkit-backdrop-filter: var(--dtc-glass-blur);
    border-bottom: 1px solid var(--dtc-border);
    padding: 0 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.dtc-navbar .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.dtc-navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--dtc-text-primary);
    font-weight: 700;
    font-size: 1.3rem;
}

.dtc-navbar-brand img {
    height: 36px;
    width: auto;
}

.dtc-navbar-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.dtc-navbar-links a {
    color: var(--dtc-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--dtc-radius-sm);
    transition: var(--dtc-transition-fast);
    position: relative;
}

.dtc-navbar-links a:hover,
.dtc-navbar-links a.active {
    color: var(--dtc-text-primary);
    background: rgba(255,255,255,0.05);
}

.dtc-navbar-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--dtc-blue);
    border-radius: 2px;
}

.dtc-navbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.dtc-navbar-user {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--dtc-text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: var(--dtc-radius-sm);
    transition: var(--dtc-transition-fast);
    position: relative;
    background: none;
    border: none;
}

.dtc-navbar-user:hover {
    color: var(--dtc-text-primary);
    background: rgba(255,255,255,0.05);
}

.dtc-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--dtc-blue), var(--dtc-cyan));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.dtc-avatar-lg {
    width: 80px;
    height: 80px;
    font-size: 2rem;
    border: 3px solid transparent;
    background-image: linear-gradient(var(--dtc-bg-secondary), var(--dtc-bg-secondary)),
                      linear-gradient(135deg, var(--dtc-blue), var(--dtc-cyan));
    background-origin: border-box;
    background-clip: content-box, border-box;
}

/* Dropdown */
.dtc-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--dtc-bg-secondary);
    border: 1px solid var(--dtc-border);
    border-radius: var(--dtc-radius-md);
    min-width: 200px;
    box-shadow: var(--dtc-shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--dtc-transition-fast);
    z-index: 1001;
}

.dtc-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dtc-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--dtc-text-secondary);
    font-size: 0.85rem;
    transition: var(--dtc-transition-fast);
}

.dtc-dropdown a:hover {
    background: rgba(255,255,255,0.05);
    color: var(--dtc-text-primary);
}

.dtc-dropdown-divider {
    height: 1px;
    background: var(--dtc-border);
    margin: 4px 0;
}

/* Hamburger */
.dtc-hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--dtc-text-primary);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 8px;
}

/* Mobile Nav Drawer */
.dtc-mobile-nav {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(11,17,32,0.97);
    backdrop-filter: var(--dtc-glass-blur);
    z-index: 999;
    padding: 20px;
    flex-direction: column;
    gap: 4px;
}

.dtc-mobile-nav.open { display: flex; }

.dtc-mobile-nav a {
    color: var(--dtc-text-secondary);
    text-decoration: none;
    font-size: 1rem;
    padding: 14px 16px;
    border-radius: var(--dtc-radius-sm);
    transition: var(--dtc-transition-fast);
    display: flex;
    align-items: center;
    gap: 12px;
}

.dtc-mobile-nav a:hover,
.dtc-mobile-nav a.active {
    color: var(--dtc-text-primary);
    background: rgba(255,255,255,0.05);
}

@media (max-width: 768px) {
    .dtc-hamburger { display: block; }
    .dtc-navbar-links { display: none; }
    .dtc-navbar-right .dtc-navbar-user span { display: none; }
}

/* --- Buttons --- */
.dtc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--dtc-radius-md);
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--dtc-transition);
    border: none;
    text-decoration: none;
    line-height: 1.4;
}

.dtc-btn-primary {
    background: linear-gradient(135deg, var(--dtc-blue) 0%, var(--dtc-blue-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0,123,255,0.3);
}

.dtc-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,123,255,0.4);
    color: #fff;
}

.dtc-btn-secondary {
    background: transparent;
    color: var(--dtc-blue);
    border: 1.5px solid var(--dtc-blue);
}

.dtc-btn-secondary:hover {
    background: rgba(0,123,255,0.1);
    transform: translateY(-2px);
    color: var(--dtc-blue-hover);
}

.dtc-btn-ghost {
    background: transparent;
    color: var(--dtc-text-secondary);
    padding: 10px 16px;
}

.dtc-btn-ghost:hover {
    background: rgba(255,255,255,0.05);
    color: var(--dtc-text-primary);
}

.dtc-btn-sm {
    padding: 8px 16px;
    font-size: 0.8rem;
}

.dtc-btn-lg {
    padding: 16px 32px;
    font-size: 1rem;
}

.dtc-btn-block { width: 100%; }

.dtc-btn-gold {
    background: linear-gradient(135deg, var(--dtc-gold) 0%, #FFA500 100%);
    color: #1a1a1a;
    font-weight: 700;
}

.dtc-btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,215,0,0.4);
    color: #1a1a1a;
}

/* --- Form Components --- */
.dtc-input-group {
    position: relative;
    margin-bottom: 24px;
}

.dtc-input {
    width: 100%;
    background: var(--dtc-bg-secondary);
    border: 1.5px solid var(--dtc-border);
    border-radius: var(--dtc-radius-md);
    padding: 16px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    color: var(--dtc-text-primary);
    transition: var(--dtc-transition);
    outline: none;
}

.dtc-input::placeholder { color: var(--dtc-text-muted); }

.dtc-input:focus {
    border-color: var(--dtc-blue);
    box-shadow: 0 0 0 3px rgba(0,123,255,0.15);
}

.dtc-input-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--dtc-text-secondary);
    margin-bottom: 6px;
}

.dtc-input-hint {
    font-size: 0.75rem;
    color: var(--dtc-text-muted);
    margin-top: 4px;
}

.dtc-input-error {
    border-color: var(--dtc-danger) !important;
    box-shadow: 0 0 0 3px rgba(255,71,87,0.15) !important;
}

/* Password toggle */
.dtc-password-wrapper {
    position: relative;
}

.dtc-password-wrapper .dtc-input { padding-right: 48px; }

.dtc-password-toggle {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--dtc-text-muted);
    cursor: pointer;
    font-size: 1rem;
    padding: 0;
}

.dtc-password-toggle:hover { color: var(--dtc-text-secondary); }

/* --- DTC Code Cards --- */
.dtc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    padding: 0;
    max-width: 1200px;
    margin: 0 auto;
}

.dtc-code-card {
    text-align: center;
    padding: 14px 8px;
    background: var(--dtc-bg-secondary);
    border: 1px solid var(--dtc-border);
    border-radius: var(--dtc-radius-sm);
    transition: var(--dtc-transition);
    cursor: pointer;
}

.dtc-code-card a {
    text-decoration: none;
    color: var(--dtc-text-primary);
    font-weight: 600;
    font-size: 0.9rem;
    font-family: 'Courier New', monospace;
    letter-spacing: 0.5px;
    display: block;
}

.dtc-code-card:hover {
    background: var(--dtc-blue);
    border-color: var(--dtc-blue);
    transform: scale(1.05);
    box-shadow: var(--dtc-shadow-glow);
}

.dtc-code-card:hover a { color: #fff; }

/* --- Category Pills --- */
.dtc-category-nav {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 16px 0;
    flex-wrap: wrap;
}

.dtc-category-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: var(--dtc-bg-secondary);
    border: 1px solid var(--dtc-border);
    border-radius: 50px;
    color: var(--dtc-text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--dtc-transition);
}

.dtc-category-pill:hover,
.dtc-category-pill.active {
    background: var(--dtc-blue);
    border-color: var(--dtc-blue);
    color: #fff;
    box-shadow: var(--dtc-shadow-glow);
}

.dtc-category-pill i {
    font-size: 0.75rem;
}

/* --- Hero Section --- */
.dtc-hero {
    text-align: center;
    padding: 60px 20px 40px;
    max-width: 800px;
    margin: 0 auto;
}

.dtc-hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.dtc-hero p {
    font-size: 1.1rem;
    color: var(--dtc-text-secondary);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.dtc-search-bar {
    display: flex;
    max-width: 500px;
    margin: 0 auto 24px;
    gap: 8px;
}

.dtc-search-bar input {
    flex: 1;
    background: var(--dtc-bg-secondary);
    border: 1.5px solid var(--dtc-border);
    border-radius: var(--dtc-radius-md);
    padding: 14px 20px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    color: var(--dtc-text-primary);
    outline: none;
    transition: var(--dtc-transition);
}

.dtc-search-bar input:focus {
    border-color: var(--dtc-blue);
    box-shadow: 0 0 0 3px rgba(0,123,255,0.15);
}

.dtc-search-bar input::placeholder { color: var(--dtc-text-muted); }

/* --- Section Containers --- */
.dtc-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.dtc-section {
    padding: 40px 0;
}

.dtc-section-header {
    text-align: center;
    margin-bottom: 32px;
}

.dtc-section-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.dtc-section-header p {
    color: var(--dtc-text-secondary);
    font-size: 0.95rem;
}

/* --- Pricing Cards --- */
.dtc-pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 700px;
    margin: 0 auto;
}

.dtc-pricing-card {
    background: var(--dtc-bg-secondary);
    border: 2px solid var(--dtc-border);
    border-radius: var(--dtc-radius-xl);
    padding: 32px;
    text-align: center;
    transition: var(--dtc-transition);
    position: relative;
}

.dtc-pricing-card:hover {
    transform: translateY(-4px);
    border-color: var(--dtc-border-hover);
}

.dtc-pricing-card.popular {
    border-color: var(--dtc-blue);
    box-shadow: var(--dtc-shadow-glow-strong);
}

.dtc-pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--dtc-blue), var(--dtc-cyan));
    color: #fff;
    padding: 4px 20px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dtc-pricing-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--dtc-blue);
    margin: 16px 0;
}

.dtc-pricing-price small {
    font-size: 1rem;
    color: var(--dtc-text-muted);
    font-weight: 400;
}

.dtc-pricing-features {
    list-style: none;
    padding: 0;
    margin: 24px 0;
    text-align: left;
}

.dtc-pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--dtc-border);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--dtc-text-secondary);
}

.dtc-pricing-features li:last-child { border-bottom: none; }

.dtc-pricing-features li i { color: var(--dtc-cyan); font-size: 0.85rem; }

/* --- Chat UI --- */
.dtc-chat-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.dtc-chat-header {
    background: var(--dtc-bg-secondary);
    border-bottom: 1px solid var(--dtc-border);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.dtc-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.dtc-chat-bubble {
    max-width: 80%;
    padding: 14px 18px;
    border-radius: var(--dtc-radius-lg);
    font-size: 0.9rem;
    line-height: 1.6;
    word-wrap: break-word;
    position: relative;
}

.dtc-chat-bubble.user {
    background: linear-gradient(135deg, var(--dtc-blue), var(--dtc-blue-dark));
    color: #fff;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.dtc-chat-bubble.assistant {
    background: var(--dtc-bg-secondary);
    border: 1px solid var(--dtc-border);
    color: var(--dtc-text-primary);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.dtc-chat-bubble.system {
    background: transparent;
    color: var(--dtc-text-muted);
    align-self: center;
    font-size: 0.8rem;
    text-align: center;
    max-width: 90%;
}

.dtc-chat-bubble-label {
    font-size: 0.7rem;
    color: var(--dtc-text-muted);
    margin-bottom: 4px;
    font-weight: 600;
}

.dtc-chat-bubble-copy {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(255,255,255,0.1);
    border: none;
    color: var(--dtc-text-muted);
    cursor: pointer;
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: 4px;
    opacity: 0;
    transition: var(--dtc-transition-fast);
}

.dtc-chat-bubble:hover .dtc-chat-bubble-copy { opacity: 1; }
.dtc-chat-bubble-copy:hover { background: rgba(255,255,255,0.2); color: var(--dtc-text-primary); }

/* Typing indicator */
.dtc-typing {
    align-self: flex-start;
    display: none;
    padding: 14px 18px;
    background: var(--dtc-bg-secondary);
    border: 1px solid var(--dtc-border);
    border-radius: var(--dtc-radius-lg);
    border-bottom-left-radius: 4px;
}

.dtc-typing.visible { display: flex; gap: 4px; align-items: center; }

.dtc-typing-dot {
    width: 8px;
    height: 8px;
    background: var(--dtc-text-muted);
    border-radius: 50%;
    animation: dtcTypingBounce 1.4s infinite;
}

.dtc-typing-dot:nth-child(2) { animation-delay: 0.2s; }
.dtc-typing-dot:nth-child(3) { animation-delay: 0.4s; }

/* Chat welcome */
.dtc-chat-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    gap: 16px;
    padding: 40px 20px;
    text-align: center;
}

.dtc-chat-welcome h2 { color: var(--dtc-text-primary); margin: 0; }
.dtc-chat-welcome p { color: var(--dtc-text-muted); margin: 0; max-width: 400px; }

.dtc-quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-top: 8px;
}

.dtc-quick-action {
    background: var(--dtc-bg-secondary);
    border: 1px solid var(--dtc-border);
    border-radius: 50px;
    padding: 8px 16px;
    color: var(--dtc-text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--dtc-transition-fast);
    font-family: 'Poppins', sans-serif;
}

.dtc-quick-action:hover {
    border-color: var(--dtc-blue);
    color: var(--dtc-blue);
    background: rgba(0,123,255,0.05);
}

/* Chat input */
.dtc-chat-input {
    background: var(--dtc-bg-secondary);
    border-top: 1px solid var(--dtc-border);
    padding: 12px 20px;
    display: flex;
    gap: 10px;
    flex-shrink: 0;
    align-items: flex-end;
}

.dtc-chat-input textarea {
    flex: 1;
    background: var(--dtc-bg-primary);
    border: 1px solid var(--dtc-border);
    color: var(--dtc-text-primary);
    padding: 12px 16px;
    border-radius: var(--dtc-radius-md);
    font-size: 0.9rem;
    resize: none;
    height: 44px;
    max-height: 120px;
    font-family: 'Poppins', sans-serif;
    outline: none;
    transition: var(--dtc-transition);
}

.dtc-chat-input textarea:focus { border-color: var(--dtc-blue); }
.dtc-chat-input textarea::placeholder { color: var(--dtc-text-muted); }

.dtc-chat-send {
    background: var(--dtc-blue);
    border: none;
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: var(--dtc-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--dtc-transition-fast);
    flex-shrink: 0;
}

.dtc-chat-send:hover { background: var(--dtc-blue-hover); }
.dtc-chat-send:disabled { background: var(--dtc-bg-tertiary); cursor: not-allowed; }

/* DTC Chip */
.dtc-chip-bar {
    background: var(--dtc-bg-tertiary);
    border-bottom: 1px solid var(--dtc-border);
    padding: 8px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.dtc-chip-bar label {
    font-size: 0.8rem;
    color: var(--dtc-text-muted);
    white-space: nowrap;
}

.dtc-chip-bar input {
    background: var(--dtc-bg-secondary);
    border: 1px solid var(--dtc-border);
    color: var(--dtc-text-primary);
    padding: 6px 12px;
    border-radius: var(--dtc-radius-sm);
    font-size: 0.85rem;
    width: 120px;
    text-transform: uppercase;
    font-family: 'Courier New', monospace;
    outline: none;
}

.dtc-chip-bar input:focus { border-color: var(--dtc-blue); }

.dtc-usage-counter {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--dtc-text-muted);
}

/* --- Detail Page Sections --- */
.dtc-detail-card {
    background: var(--dtc-bg-secondary);
    border: 1px solid var(--dtc-border);
    border-radius: var(--dtc-radius-lg);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--dtc-transition);
}

.dtc-detail-card:hover { border-color: var(--dtc-border-hover); }

.dtc-detail-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--dtc-text-primary);
}

.dtc-detail-card-header i {
    color: var(--dtc-blue);
    width: 20px;
    text-align: center;
}

.dtc-detail-card-header .chevron {
    margin-left: auto;
    transition: var(--dtc-transition);
    color: var(--dtc-text-muted);
}

.dtc-detail-card-header.collapsed .chevron { transform: rotate(-90deg); }

.dtc-detail-card-body {
    padding: 0 20px 20px;
    color: var(--dtc-text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* --- Breadcrumbs --- */
.dtc-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 0;
    font-size: 0.85rem;
    color: var(--dtc-text-muted);
    flex-wrap: wrap;
}

.dtc-breadcrumbs a {
    color: var(--dtc-text-secondary);
    text-decoration: none;
}

.dtc-breadcrumbs a:hover { color: var(--dtc-blue); }

.dtc-breadcrumbs .separator { color: var(--dtc-text-muted); }

.dtc-breadcrumbs .current {
    color: var(--dtc-text-primary);
    font-weight: 600;
}

/* --- Affiliate Part Cards --- */
.dtc-parts-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 12px 0;
}

.dtc-part-card {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    background: linear-gradient(135deg, var(--dtc-blue), var(--dtc-blue-dark));
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.85rem;
    transition: var(--dtc-transition);
}

.dtc-part-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--dtc-shadow-glow);
    color: #fff;
}

/* --- CTA Banner --- */
.dtc-cta-banner {
    background: linear-gradient(135deg, var(--dtc-bg-secondary) 0%, rgba(0,123,255,0.1) 100%);
    border: 1px solid rgba(0,123,255,0.2);
    border-radius: var(--dtc-radius-xl);
    padding: 40px;
    text-align: center;
    margin: 40px 0;
}

.dtc-cta-banner h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.dtc-cta-banner p {
    color: var(--dtc-text-secondary);
    margin-bottom: 24px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* --- Trust Signals --- */
.dtc-trust-signals {
    display: flex;
    justify-content: center;
    gap: 32px;
    padding: 24px 0;
    flex-wrap: wrap;
}

.dtc-trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--dtc-text-muted);
}

.dtc-trust-item i { color: var(--dtc-success); }

/* --- FAQ Accordion --- */
.dtc-faq-item {
    background: var(--dtc-bg-secondary);
    border: 1px solid var(--dtc-border);
    border-radius: var(--dtc-radius-md);
    margin-bottom: 8px;
    overflow: hidden;
}

.dtc-faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--dtc-text-primary);
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-family: 'Poppins', sans-serif;
}

.dtc-faq-question:hover { background: rgba(255,255,255,0.02); }

.dtc-faq-answer {
    padding: 0 20px 16px;
    color: var(--dtc-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    display: none;
}

.dtc-faq-item.open .dtc-faq-answer { display: block; }
.dtc-faq-item.open .dtc-faq-question i { transform: rotate(180deg); }

/* --- Alerts --- */
.dtc-alert {
    padding: 14px 20px;
    border-radius: var(--dtc-radius-md);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.dtc-alert-success { background: rgba(0,196,140,0.1); border: 1px solid rgba(0,196,140,0.3); color: var(--dtc-success); }
.dtc-alert-danger { background: rgba(255,71,87,0.1); border: 1px solid rgba(255,71,87,0.3); color: var(--dtc-danger); }
.dtc-alert-warning { background: rgba(255,184,0,0.1); border: 1px solid rgba(255,184,0,0.3); color: var(--dtc-warning); }
.dtc-alert-info { background: rgba(0,123,255,0.1); border: 1px solid rgba(0,123,255,0.3); color: var(--dtc-blue); }

/* --- Profile / Stats --- */
.dtc-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.dtc-stat-card {
    background: var(--dtc-bg-tertiary);
    border: 1px solid var(--dtc-border);
    border-radius: var(--dtc-radius-md);
    padding: 20px;
    text-align: center;
}

.dtc-stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dtc-blue);
    margin-bottom: 4px;
}

.dtc-stat-label {
    font-size: 0.8rem;
    color: var(--dtc-text-muted);
}

/* --- Footer --- */
.dtc-footer {
    background: var(--dtc-bg-secondary);
    border-top: 1px solid var(--dtc-border);
    padding: 40px 0 20px;
    margin-top: auto;
}

.dtc-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 30px;
}

.dtc-footer-brand p {
    color: var(--dtc-text-muted);
    font-size: 0.85rem;
    margin-top: 8px;
    line-height: 1.5;
}

.dtc-footer h4 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--dtc-text-secondary);
    margin-bottom: 16px;
}

.dtc-footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dtc-footer-links li { margin-bottom: 8px; }

.dtc-footer-links a {
    color: var(--dtc-text-muted);
    font-size: 0.85rem;
    transition: var(--dtc-transition-fast);
}

.dtc-footer-links a:hover { color: var(--dtc-text-primary); }

.dtc-footer-bottom {
    border-top: 1px solid var(--dtc-border);
    text-align: center;
    padding: 16px 20px 0;
    max-width: 1200px;
    margin: 0 auto;
}

.dtc-footer-bottom p {
    color: var(--dtc-text-muted);
    font-size: 0.8rem;
}

.dtc-footer-bottom a { color: var(--dtc-blue); }

@media (max-width: 768px) {
    .dtc-footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* --- Skeleton Loading --- */
.dtc-skeleton {
    background: linear-gradient(90deg,
        var(--dtc-bg-secondary) 25%,
        var(--dtc-bg-tertiary) 50%,
        var(--dtc-bg-secondary) 75%);
    background-size: 200% 100%;
    animation: dtcShimmer 1.5s infinite;
    border-radius: var(--dtc-radius-sm);
}

/* --- Animations --- */
@keyframes dtcFadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes dtcShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

@keyframes dtcPulseGlow {
    0%, 100% { box-shadow: 0 0 15px rgba(0,123,255,0.2); }
    50% { box-shadow: 0 0 30px rgba(0,123,255,0.4); }
}

@keyframes dtcTypingBounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-6px); }
}

.animate-fade-in-up {
    animation: dtcFadeInUp 0.5s ease-out forwards;
    opacity: 0;
}

.animate-pulse-glow {
    animation: dtcPulseGlow 2s ease-in-out infinite;
}

/* Stagger for grid items */
.dtc-grid .dtc-code-card:nth-child(n) {
    animation: dtcFadeInUp 0.4s ease-out forwards;
    opacity: 0;
}

/* Apply stagger in batches of 20 for performance */
.dtc-grid .dtc-code-card:nth-child(-n+10) { animation-delay: 0.05s; }
.dtc-grid .dtc-code-card:nth-child(n+11):nth-child(-n+20) { animation-delay: 0.1s; }
.dtc-grid .dtc-code-card:nth-child(n+21) { animation-delay: 0.15s; }

/* --- Utility --- */
.dtc-text-center { text-align: center; }
.dtc-mt-1 { margin-top: 8px; }
.dtc-mt-2 { margin-top: 16px; }
.dtc-mt-3 { margin-top: 24px; }
.dtc-mt-4 { margin-top: 32px; }
.dtc-mb-1 { margin-bottom: 8px; }
.dtc-mb-2 { margin-bottom: 16px; }
.dtc-mb-3 { margin-bottom: 24px; }
.dtc-mb-4 { margin-bottom: 32px; }
.dtc-p-2 { padding: 16px; }
.dtc-p-3 { padding: 24px; }
.dtc-p-4 { padding: 32px; }

/* --- Responsive --- */
@media (max-width: 768px) {
    .text-display { font-size: 2rem; }
    .dtc-hero h1 { font-size: 1.75rem; }
    .dtc-hero { padding: 40px 16px 24px; }
    .dtc-chat-bubble { max-width: 90%; }
    .dtc-pricing-grid { grid-template-columns: 1fr; max-width: 360px; }
    .dtc-cta-banner { padding: 24px; }
    .dtc-search-bar { flex-direction: column; }
}

@media (max-width: 480px) {
    .dtc-grid { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: 8px; }
    .dtc-category-nav { gap: 6px; }
    .dtc-category-pill { padding: 8px 14px; font-size: 0.8rem; }
}