:root {
    --bg-color: #030712;
    --card-bg: rgba(17, 24, 39, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --accent-color: #38bdf8;
    --accent-gradient: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --up-color: #ef4444;
    --down-color: #22c55e;
    --steady-color: #64748b;
    --glass-blur: blur(16px);
    --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Outfit', 'Inter', 'Noto Sans KR', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    line-height: 1.6;
}

/* Background Decorations */
.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.12;
    animation: move 25s infinite alternate ease-in-out;
}

.blob-1 { background: #0ea5e9; top: -150px; left: -100px; }
.blob-2 { background: #8b5cf6; bottom: -150px; right: -100px; animation-delay: -7s; }
.blob-3 { background: #d946ef; top: 30%; left: 40%; width: 400px; height: 400px; animation-delay: -12s; }

@keyframes move {
    0% { transform: translate(0, 0) scale(1) rotate(0deg); }
    50% { transform: translate(100px, 50px) scale(1.1) rotate(90deg); }
    100% { transform: translate(-50px, 150px) scale(1) rotate(180deg); }
}

.app-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
}

.logo {
    font-size: 1.75rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

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

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    margin-bottom: 0.75rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 20px rgba(56, 189, 248, 0.2));
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
}

/* Search & Filters */
.search-section {
    margin-bottom: 3rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
}

.search-bar {
    width: 100%;
    max-width: 700px;
    position: relative;
}

.search-bar i {
    position: absolute;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    transition: color 0.3s;
}

.search-bar input {
    width: 100%;
    padding: 1.5rem 1.5rem 1.5rem 4rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    color: #fff;
    font-size: 1.1rem;
    font-weight: 500;
    backdrop-filter: var(--glass-blur);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-premium);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 30px rgba(56, 189, 248, 0.15);
    transform: translateY(-2px);
}

.search-bar input:focus + i {
    color: var(--accent-color);
}

.filter-tabs {
    display: flex;
    gap: 0.75rem;
    padding: 6px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 100px;
    border: 1px solid var(--border-color);
}

.filter-btn {
    padding: 0.75rem 2rem;
    background: transparent;
    border: none;
    border-radius: 100px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 700;
    font-size: 0.95rem;
}

.filter-btn:hover {
    color: #fff;
}

.filter-btn.active {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
}

/* Main Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 2.5rem;
    align-items: start;
}

.card-panel {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 32px;
    backdrop-filter: var(--glass-blur);
    padding: 2.5rem;
    box-shadow: var(--shadow-premium);
    transition: transform 0.3s;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.panel-header h2 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

#itemCount {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.05);
    padding: 4px 12px;
    border-radius: 8px;
}

/* Parts List */
.parts-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 700px;
    overflow-y: auto;
    padding-right: 0.75rem;
}

.parts-list::-webkit-scrollbar {
    width: 6px;
}

.parts-list::-webkit-scrollbar-track {
    background: transparent;
}

.parts-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.part-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    animation: fadeInUp 0.5s ease-out forwards;
    opacity: 0;
}

.part-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-color);
    transform: scale(1.02) translateX(5px);
    box-shadow: 0 10px 25px -5px rgba(56, 189, 248, 0.1);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.part-info {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.part-category {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.part-name {
    font-weight: 700;
    font-size: 1.15rem;
    color: #fff;
}

.part-price-info {
    text-align: right;
}

.part-price {
    font-weight: 800;
    font-size: 1.3rem;
    background: linear-gradient(to right, #fff, #cbd5e1);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.part-change {
    font-size: 0.85rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 4px;
}

.trend-up { color: var(--up-color); }
.trend-down { color: var(--down-color); }
.trend-steady { color: var(--steady-color); }

/* Quote Container */
.quote-container {
    position: sticky;
    top: 2rem;
}

.quote-items {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
    max-height: 400px;
    overflow-y: auto;
}

.quote-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

.quote-item-info .part-name {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.quote-item-info .part-price {
    font-size: 1.1rem;
}

.remove-btn {
    background: rgba(239, 68, 68, 0.1);
    border: none;
    color: #ef4444;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.remove-btn:hover {
    background: #ef4444;
    color: white;
    transform: rotate(90deg);
}

.text-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.text-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.quote-footer {
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.total-row span:first-child {
    color: var(--text-secondary);
    font-weight: 600;
}

.total-row .price {
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent-color);
    text-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
}

.primary-btn {
    width: 100%;
    padding: 1.25rem;
    background: var(--accent-gradient);
    border: none;
    border-radius: 16px;
    color: #fff;
    font-weight: 800;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 25px -5px rgba(56, 189, 248, 0.4);
}

.primary-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 35px -5px rgba(56, 189, 248, 0.6);
}

.secondary-btn {
    width: 100%;
    padding: 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    color: #fff;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s;
}

.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Premium Export Card */
.premium-quote-card {
    width: 600px;
    background: linear-gradient(135deg, #020617 0%, #0f172a 100%);
    padding: 50px;
    border-radius: 40px;
    color: white;
    font-family: 'Outfit', sans-serif;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.premium-quote-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(56, 189, 248, 0.1), transparent);
    pointer-events: none;
}

/* PC Optimized Layout - Focus on Desktop Experience */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 3rem;
    align-items: start;
}

.quote-container {
    position: sticky;
    top: 2rem;
}

.app-container {
    padding: 4rem 2rem;
}

header {
    margin-bottom: 5rem;
}

h1 {
    font-size: 4rem;
}

/* Hidden Export Card Fix */
.export-canvas-container {
    position: absolute;
    top: -9999px;
    left: -9999px;
    visibility: hidden;
    pointer-events: none;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* No mobile specific overrides here - they are in mobile.css */

/* Sparkline Fix */
.sparkline-container {
    display: none; /* Removed for cleaner look */
}

/* Toast Upgrade */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-gradient);
    color: #fff;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    font-weight: 700;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 10px 30px rgba(56, 189, 248, 0.4);
}

.toast.show {
    opacity: 1;
    visibility: visible;
    bottom: 3rem;
}

/* Admin Styles */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.admin-controls {
    display: flex;
    gap: 1rem;
}

.table-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 1.5rem;
    overflow-x: auto;
    backdrop-filter: var(--glass-blur);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    padding: 1rem;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.admin-input {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: #fff;
    padding: 0.5rem;
    width: 100%;
    transition: border-color 0.3s;
}

.admin-input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.select-input {
    cursor: pointer;
    background-color: #1a1e26;
}

.action-btns {
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.icon-btn:hover {
    color: #fff;
    border-color: #fff;
}

.icon-btn.save { color: var(--accent-color); border-color: var(--accent-color); }
.icon-btn.delete { color: var(--up-color); border-color: var(--up-color); }

.add-part-form {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2rem;
    margin-bottom: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    align-items: flex-end;
    backdrop-filter: var(--glass-blur);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.secondary-btn {
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: #fff;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 600;
}

.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.nav-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
}

.nav-link:hover {
    text-decoration: underline;
}

/* Pagination Styles */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.page-btn {
    min-width: 40px;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: var(--accent-color);
}

.page-btn.active {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
}

.page-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}