:root {
    --primary: #EF4444;
    /* Primary Red */
    --primary-hover: #DC2626;
    /* Hover Red */
    --secondary: #F87171;
    /* Secondary Red */
    --accent: #FECACA;
    /* Accent Pink-Red */
    --bg-main: #0F172A;
    /* Slate 900 Background */
    --bg-panel: rgba(30, 41, 59, 0.7);
    /* Slate 800 Glass */
    --bg-panel-solid: #1E293B;

    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --border-color: rgba(255, 255, 255, 0.1);

    --success: #10B981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --warning: #F59E0B;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --error: #EF4444;
    --error-bg: rgba(239, 68, 68, 0.1);
    --info: #3B82F6;
    --info-bg: rgba(59, 130, 246, 0.1);

    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

.glass-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background:
        radial-gradient(circle at 10% 20%, rgba(239, 68, 68, 0.15), transparent 30%),
        radial-gradient(circle at 90% 80%, rgba(248, 113, 113, 0.1), transparent 30%);
    z-index: -1;
    pointer-events: none;
}

.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glass);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Header */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
}

.header-content {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.logo {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
}

h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
}

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

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
}

.btn-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border: none;
    cursor: pointer;
    transition: 0.2s;
}

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

.btn-danger-icon {
    color: var(--error);
    background: var(--error-bg);
}

.btn-danger-icon:hover {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

/* Main Layout */
main {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
    align-items: start;
}

/* Sidebar */
.sidebar {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.filter-group label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-btn {
    text-align: left;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: 0.2s;
    font-size: 0.875rem;
    font-family: inherit;
}

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

.filter-btn.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-color: var(--border-color);
}

/* Text Colors */
.text-success {
    color: var(--success);
}

.text-warning {
    color: var(--warning);
}

.text-error {
    color: var(--error);
}

.text-info {
    color: var(--info);
}

.text-blue {
    color: #60A5FA;
}

/* Stats Row */
.items-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.stat-card {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.stat-card i {
    font-size: 2rem;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-info span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-info small {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Grid */
.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* Warranty Card */
.warranty-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(12px);
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
}

.warranty-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glass);
    border-color: rgba(255, 255, 255, 0.2);
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.card-header h3 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-right: 30px;
}

.card-header p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.card-actions {
    position: absolute;
    right: 1rem;
    top: 1.5rem;
    display: flex;
    gap: 0.5rem;
}

.status-badge {
    position: absolute;
    top: -1px;
    left: -1px;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-lg) 0 var(--radius-lg) 0;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-active {
    background: var(--success-bg);
    color: var(--success);
    border-right: 1px solid rgba(16, 185, 129, 0.2);
    border-bottom: 1px solid rgba(16, 185, 129, 0.2);
}

.status-warning {
    background: var(--warning-bg);
    color: var(--warning);
    border-right: 1px solid rgba(245, 158, 11, 0.2);
    border-bottom: 1px solid rgba(245, 158, 11, 0.2);
}

.status-expired {
    background: var(--error-bg);
    color: var(--error);
    border-right: 1px solid rgba(239, 68, 68, 0.2);
    border-bottom: 1px solid rgba(239, 68, 68, 0.2);
}

.card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.date-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
}

.date-item {
    display: flex;
    flex-direction: column;
}

.date-label {
    color: var(--text-secondary);
    font-size: 0.75rem;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
}

.days-left {
    text-align: center;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
}

.days-number {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.days-text {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.1);
}

.claim-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    background: var(--info-bg);
    color: var(--info);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.receipt-btn {
    font-size: 0.875rem;
    color: var(--primary);
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.receipt-btn:hover {
    text-decoration: underline;
}

.empty-state {
    text-align: center;
    padding: 5rem 2rem;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.empty-state i {
    font-size: 4rem;
    opacity: 0.5;
    color: var(--primary);
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.active {
    display: flex;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal-content {
    width: 100%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
    max-height: 90vh;
}

.modal-lg {
    max-width: 800px;
}

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

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
}

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.span-2 {
    grid-column: span 2;
}

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

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.glass-input {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-family: inherit;
    font-size: 0.875rem;
    transition: 0.2s;
    color-scheme: dark;
}

.glass-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
}

textarea.glass-input {
    resize: vertical;
    min-height: 80px;
}

.receipt-upload {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.2);
    transition: 0.2s;
    color: var(--text-secondary);
}

.receipt-upload:hover {
    border-color: var(--primary);
    background: rgba(239, 68, 68, 0.05);
    color: var(--primary);
}

.receipt-upload i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    display: block;
}

.receipt-preview {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(0, 0, 0, 0.3);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.receipt-preview img {
    height: 60px;
    width: auto;
    max-width: 100px;
    object-fit: cover;
    border-radius: 4px;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

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

@media (max-width: 1024px) {
    main {
        grid-template-columns: 1fr;
    }

    .sidebar {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .stats-row {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .span-2 {
        grid-column: span 1;
    }
}