/* =========================================================================
   PORTAL AUTO-SCANNER - SYSTEM DESIGN SYSTEM
   ========================================================================= */

:root {
    --bg-primary: #0b132b;
    --bg-secondary: #1c2541;
    --bg-tertiary: #1b263b;
    --text-main: #f8f9fa;
    --text-muted: #a5a5a5;
    
    --primary: #3a86c8;
    --primary-hover: #4e9ce0;
    --success: #2ec4b6;
    --danger: #e63946;
    --warning: #ffb703;
    
    --border: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(28, 37, 65, 0.6);
    --glass-border: rgba(255, 255, 255, 0.05);
    
    --font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --radius: 12px;
}

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

body {
    font-family: var(--font);
    background-color: var(--bg-primary);
    color: var(--text-main);
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
}

/* =========================================================================
   HEADER STYLING
   ========================================================================= */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    z-index: 10;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-logo .icon {
    font-size: 28px;
    background: rgba(255, 255, 255, 0.05);
    padding: 8px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
}

.header-logo h1 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
}

.header-logo p {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* =========================================================================
   MAIN LAYOUT & SIDEBAR
   ========================================================================= */
.main-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
    height: calc(100vh - 73px);
}

.sidebar {
    width: 380px;
    background-color: #121b33;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    background-color: rgba(0, 0, 0, 0.1);
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: var(--font);
    font-size: 14px;
    font-weight: 500;
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    border-bottom: 2px solid transparent;
}

.tab-btn:hover {
    color: var(--text-main);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    background-color: rgba(255, 255, 255, 0.01);
}

.badge {
    background-color: var(--primary);
    color: white;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 20px;
    margin-left: 4px;
    font-weight: 600;
}

.list-container {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

/* =========================================================================
   CARDS & LISTS
   ========================================================================= */
.document-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.doc-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.doc-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255,255,255,0.15);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.doc-card.active {
    border-color: var(--primary);
    background-color: rgba(58, 134, 200, 0.08);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 8px;
    margin-bottom: 8px;
}

.card-header h4 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-main);
    word-break: break-all;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

.status-indicator {
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
}

.status-indicator.pending { background-color: rgba(255, 183, 3, 0.15); color: var(--warning); }
.status-indicator.success { background-color: rgba(46, 196, 182, 0.15); color: var(--success); }
.status-indicator.failed { background-color: rgba(230, 57, 70, 0.15); color: var(--danger); }

/* =========================================================================
   WORK AREA & EDIT LAYOUT
   ========================================================================= */
.work-area {
    flex: 1;
    display: flex;
    overflow: hidden;
    background-color: var(--bg-primary);
}

.editor-container {
    display: flex;
    width: 100%;
    height: 100%;
}

.pdf-preview-pane {
    flex: 1.1;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border);
    background-color: #1b2138;
}

.pdf-viewer-wrapper {
    flex: 1;
    padding: 16px;
    display: flex;
}

#pdf-viewer {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px;
    background-color: var(--bg-primary);
}

.metadata-pane {
    flex: 0.9;
    display: flex;
    flex-direction: column;
    background-color: #12192e;
    overflow-y: auto;
}

.pane-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(0,0,0,0.1);
}

.pane-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.badge-status {
    background-color: rgba(255, 183, 3, 0.15);
    color: var(--warning);
    font-size: 12px;
    font-weight: 500;
    padding: 4px 8px;
    border-radius: 4px;
}

/* =========================================================================
   FORM ELEMENTS
   ========================================================================= */
.metadata-form {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    flex: 1;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-main);
    font-family: var(--font);
    font-size: 14px;
    padding: 10px 14px;
    border-radius: 6px;
    outline: none;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(58, 134, 200, 0.15);
}

.help-text {
    font-size: 11px;
    color: var(--text-muted);
}

.reasoning-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin-top: 10px;
}

.reasoning-card h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.reasoning-card p {
    font-size: 13px;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.85);
}

/* =========================================================================
   BUTTONS
   ========================================================================= */
.btn {
    font-family: var(--font);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 20px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--success);
    color: #0c201c;
    font-weight: 600;
}

.btn-primary:hover {
    background-color: #3fe2d3;
    box-shadow: 0 4px 12px rgba(46, 196, 182, 0.25);
}

.btn-danger {
    background-color: rgba(230, 57, 70, 0.15);
    color: var(--danger);
    border: 1px solid rgba(230, 57, 70, 0.3);
}

.btn-danger:hover {
    background-color: var(--danger);
    color: white;
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--border);
}

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

.form-actions {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.form-actions button {
    flex: 1;
}

/* =========================================================================
   STATUS MESSAGE & LOADER
   ========================================================================= */
.state-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px 20px;
    gap: 12px;
    height: 100%;
    flex: 1;
}

.empty-icon {
    font-size: 48px;
}

.state-message h3 {
    font-size: 16px;
    font-weight: 500;
}

.state-message p {
    font-size: 13px;
    color: var(--text-muted);
    max-width: 250px;
    line-height: 1.4;
}

.spinner {
    width: 28px;
    height: 28px;
    border: 3px solid rgba(255,255,255,0.05);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s infinite linear;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* =========================================================================
   TOAST NOTIFICATION
   ========================================================================= */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #18233c;
    color: white;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 13px;
    z-index: 100;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    align-items: center;
    gap: 8px;
}

.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }

/* Utility Classes */
.hidden { display: none !important; }