@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-primary: #0B0F19;
    --bg-secondary: #121826;
    --bg-tertiary: #1B2336;
    --accent-blue: #1A56DB;
    --accent-blue-hover: #2563EB;
    --accent-blue-glow: rgba(26, 86, 219, 0.15);
    --border-color: rgba(255, 255, 255, 0.05);
    --border-color-active: rgba(26, 86, 219, 0.3);
    --text-primary: #F3F4F6;
    --text-secondary: #9CA3AF;
    --text-muted: #6B7280;
    --success-green: #059669;
    --success-bg: rgba(5, 150, 105, 0.1);
    --error-red: #EF4444;
    --error-bg: rgba(239, 68, 68, 0.1);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.4);
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    letter-spacing: -0.011em;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Layout Containers */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

header {
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 2rem;
    background-color: var(--bg-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-accent {
    color: var(--accent-blue);
}

/* Custom Alert Banner */
.alert-banner {
    padding: 0.75rem 1.25rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid transparent;
}
.alert-success {
    background-color: var(--success-bg);
    border-color: rgba(5, 150, 105, 0.2);
    color: var(--success-green);
}
.alert-danger {
    background-color: var(--error-bg);
    border-color: rgba(239, 68, 68, 0.2);
    color: var(--error-red);
}

/* Login/Register Card */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-grow: 1;
    padding: 2rem;
}

.auth-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2.5rem;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
}

.auth-card h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.025em;
}

.auth-card p.subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.auth-tab {
    flex: 1;
    text-align: center;
    padding: 0.75rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.auth-tab.active {
    color: var(--text-primary);
    border-bottom-color: var(--accent-blue);
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    outline: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-control:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px var(--accent-blue-glow);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    font-family: var(--font-sans);
    outline: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: var(--text-primary);
}

.btn-primary:hover {
    background-color: var(--accent-blue-hover);
    box-shadow: 0 0 12px var(--accent-blue-glow);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.02);
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.8125rem;
}

/* User controls in Header */
.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-tag {
    font-size: 0.875rem;
    color: var(--text-secondary);
    background-color: var(--bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    border: 1px solid var(--border-color);
}

/* Dashboard Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

/* Dropzone (Drag-and-Drop Area) */
.dropzone {
    background-color: var(--bg-secondary);
    border: 1px dashed var(--border-color);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--accent-blue);
    background-color: rgba(26, 86, 219, 0.02);
    box-shadow: 0 0 16px var(--accent-blue-glow);
}

.dropzone input[type="file"] {
    display: none;
}

.dropzone-icon {
    font-size: 2rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    transition: color 0.2s ease;
}

.dropzone:hover .dropzone-icon {
    color: var(--accent-blue-hover);
}

.dropzone-text {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.dropzone-subtext {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.selected-file-banner {
    display: none;
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color-active);
    border-radius: 6px;
    font-size: 0.875rem;
    align-items: center;
    gap: 0.5rem;
}

/* High-Density Clean Tables Section */
.card-section {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    letter-spacing: -0.015em;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

th {
    text-align: left;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

tr:last-child td {
    border-bottom: none;
}

.file-name-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.file-icon {
    color: var(--text-muted);
}

.security-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    background-color: var(--success-bg);
    color: var(--success-green);
    border: 1px solid rgba(5, 150, 105, 0.15);
}

.security-badge.unverified {
    background-color: var(--error-bg);
    color: var(--error-red);
    border: 1px solid rgba(239, 68, 68, 0.15);
}

.actions-cell {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 100%;
    max-width: 460px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transform: translateY(12px);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    transition: color 0.15s ease;
}

.modal-close:hover {
    color: var(--text-primary);
}

/* Custom SVG Icons style */
.icon {
    width: 16px;
    height: 16px;
    fill: currentColor;
    display: inline-block;
    vertical-align: middle;
}

.icon-lg {
    width: 24px;
    height: 24px;
}

/* Responsive */
@media (min-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* Dashboard Tabs Navigation */
.dashboard-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.dashboard-tab {
    background: none;
    border: 1px solid transparent;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1.25rem;
    cursor: pointer;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.dashboard-tab:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.02);
}

.dashboard-tab.active {
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    box-shadow: var(--shadow-sm);
}

.dashboard-section {
    transition: opacity 0.2s ease-in-out;
}