/* ============================================================
   IBIS Certificate Admin – Stylesheet  (v2)
   ============================================================ */

/* ----- Reset & Base ----- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Palette */
    --color-bg: #f1f5f9;
    --color-surface: #ffffff;
    --color-surface-2: #f8fafc;
    --color-primary: #4f46e5;
    --color-primary-light: #818cf8;
    --color-primary-dark: #3730a3;
    --color-primary-subtle: #eef2ff;
    --color-danger: #ef4444;
    --color-danger-light: #fee2e2;
    --color-success: #22c55e;
    --color-success-light: #dcfce7;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-text: #0f172a;
    --color-text-secondary: #64748b;
    --color-text-muted: #94a3b8;
    --color-border: #e2e8f0;
    --color-border-strong: #cbd5e1;
    /* Sidebar */
    --color-sidebar: #0f172a;
    --color-sidebar-hover: rgba(255,255,255,.07);
    --color-sidebar-text: #94a3b8;
    /* Shape & Motion */
    --radius-sm: 6px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
    --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.05);
    --shadow-lg: 0 10px 25px rgba(0,0,0,.1), 0 4px 10px rgba(0,0,0,.06);
    --shadow-xl: 0 20px 40px rgba(0,0,0,.12);
    --transition: 160ms cubic-bezier(.4,0,.2,1);
    --transition-slow: 260ms cubic-bezier(.4,0,.2,1);
}

html,
body {
    height: 100%;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 14px;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ----- Utilities ----- */
.hidden {
    display: none !important;
}

/* ===================== SCROLLBAR ===================== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-border-strong); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-muted); }

/* ===================== BUTTONS ===================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    letter-spacing: .01em;
    font-family: inherit;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 1px 2px rgba(79,70,229,.3);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    box-shadow: 0 4px 12px rgba(79,70,229,.35);
}

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

.btn-outline:hover {
    background: var(--color-primary-subtle);
}

.btn-danger {
    background: var(--color-danger);
    color: #fff;
    box-shadow: 0 1px 2px rgba(239,68,68,.25);
}

.btn-danger:hover {
    background: #dc2626;
    box-shadow: 0 4px 12px rgba(239,68,68,.3);
}

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

.btn-ghost:hover {
    color: var(--color-text);
    background: var(--color-surface-2);
}

.btn-sm {
    padding: 5px 11px;
    font-size: 12px;
    border-radius: var(--radius-sm);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ===================== LOGIN ===================== */
.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #a855f7 100%);
    padding: 24px;
}

.login-card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-xl);
}

.login-header {
    text-align: center;
    margin-bottom: 36px;
}

.login-icon-wrap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: var(--color-primary-subtle);
    border-radius: var(--radius-xl);
    margin-bottom: 16px;
}

.login-icon {
    font-size: 32px;
    color: var(--color-primary);
    margin-bottom: 0;
}

.login-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -.02em;
}

.login-header p {
    color: var(--color-text-secondary);
    margin-top: 6px;
    font-size: 14px;
}

.error-text {
    color: var(--color-danger);
    font-size: 13px;
    margin-top: 12px;
    text-align: center;
    background: var(--color-danger-light);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
}

/* ===================== APP LAYOUT ===================== */
.app-screen {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* ----- Sidebar ----- */
.sidebar {
    width: 230px;
    background: var(--color-sidebar);
    color: var(--color-sidebar-text);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    box-shadow: 2px 0 12px rgba(0,0,0,.15);
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 22px 20px 16px;
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    border-bottom: 1px solid rgba(255,255,255,.06);
}

.sidebar-header i {
    font-size: 20px;
    color: var(--color-primary-light);
    background: rgba(129,140,248,.15);
    padding: 8px;
    border-radius: var(--radius);
}

.sidebar-nav {
    flex: 1;
    padding: 12px 10px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius);
    transition: all var(--transition);
    font-size: 13.5px;
    font-weight: 500;
    color: var(--color-sidebar-text);
}

.nav-item:hover {
    background: var(--color-sidebar-hover);
    color: #e2e8f0;
}

.nav-item.active {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(79,70,229,.4);
}

.nav-item i {
    width: 18px;
    text-align: center;
    font-size: 14px;
    opacity: .85;
}

.nav-item.active i {
    opacity: 1;
}

.sidebar-footer {
    padding: 12px 10px 16px;
    border-top: 1px solid rgba(255,255,255,.06);
}

.sidebar-footer .btn {
    color: var(--color-sidebar-text);
    font-size: 13px;
    padding: 9px 14px;
    border-radius: var(--radius);
}

.sidebar-footer .btn:hover {
    background: rgba(239,68,68,.15);
    color: #fca5a5;
}

/* ----- Main Content ----- */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--color-bg);
}

.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 28px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.top-bar h2 {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -.02em;
    color: var(--color-text);
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.view {
    flex: 1;
    overflow-y: auto;
    padding: 28px;
}

/* ===================== DATA TABLE ===================== */
.search-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 10px 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.search-bar:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,.1);
}

.search-bar input {
    border: none;
    outline: none;
    flex: 1;
    font-size: 13.5px;
    background: transparent;
    color: var(--color-text);
}

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

.search-bar i {
    color: var(--color-text-muted);
    font-size: 14px;
}

.data-table-wrapper {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

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

.data-table th,
.data-table td {
    padding: 13px 18px;
    text-align: left;
    font-size: 13px;
}

.data-table th {
    background: var(--color-surface-2);
    font-weight: 600;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: .6px;
}

.data-table tr:not(:last-child) td {
    border-bottom: 1px solid var(--color-border);
}

.data-table tbody tr {
    transition: background var(--transition);
}

.data-table tbody tr:hover td {
    background: var(--color-primary-subtle);
}

.table-actions {
    display: flex;
    gap: 6px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 100px;
    font-size: 11.5px;
    font-weight: 600;
}

.badge-success {
    background: var(--color-success-light);
    color: #15803d;
}

.badge-muted {
    background: var(--color-surface-2);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

/* ----- Empty & Loading States ----- */
.empty-state,
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 72px 20px;
    color: var(--color-text-muted);
}

.empty-state i {
    font-size: 44px;
    margin-bottom: 14px;
    opacity: .35;
}

.empty-state p {
    font-size: 14px;
    font-weight: 500;
}

.loading-state p { font-size: 13px; }

.spinner {
    width: 34px;
    height: 34px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin .7s linear infinite;
    margin-bottom: 14px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===================== FORM ELEMENTS ===================== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 11.5px;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: .5px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 9px 13px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 13.5px;
    font-family: inherit;
    background: var(--color-surface);
    color: var(--color-text);
    transition: border-color var(--transition), box-shadow var(--transition);
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, .12);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.form-row {
    display: flex;
    gap: 12px;
}

.form-row .form-group {
    flex: 1;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-direction: row;
    padding: 10px 12px;
    background: var(--color-surface-2);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
}

.form-check:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-subtle);
}

.form-check input[type="checkbox"] {
    width: 17px;
    height: 17px;
    accent-color: var(--color-primary);
    cursor: pointer;
    flex-shrink: 0;
}

.form-check label {
    margin-bottom: 0;
    text-transform: none;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    letter-spacing: 0;
}

.form-section {
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 18px;
    margin-bottom: 16px;
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.form-section legend {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13.5px;
    font-weight: 700;
    color: var(--color-text);
    padding: 0 6px;
    letter-spacing: -.01em;
}

.form-section legend i {
    color: var(--color-primary);
    font-size: 13px;
}

.form-section legend .btn {
    margin-left: auto;
}

.form-actions {
    display: flex;
    gap: 10px;
    padding-top: 18px;
    border-top: 1.5px solid var(--color-border);
    justify-content: flex-end;
    flex-wrap: wrap;
}

/* ===================== EDITOR LAYOUT ===================== */
.editor-back {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 22px;
}

.editor-back h3 {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -.02em;
}

.editor-layout {
    display: flex;
    gap: 24px;
    height: calc(100vh - 176px);
}

.editor-form-panel {
    flex: 1;
    overflow-y: auto;
    padding-right: 6px;
}

.editor-preview-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--color-surface);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 18px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface-2);
}

.preview-header h4 {
    font-size: 13.5px;
    font-weight: 700;
    letter-spacing: -.01em;
    color: var(--color-text);
}

.preview-controls {
    display: flex;
    align-items: center;
    gap: 2px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 3px;
}

.preview-controls span {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-secondary);
    min-width: 44px;
    text-align: center;
}

.preview-canvas-wrapper {
    flex: 1;
    overflow: auto;
    position: relative;
    background: #dde3ed;
    background-image: radial-gradient(circle, #b0bacc 1px, transparent 1px);
    background-size: 20px 20px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 24px;
}

#previewCanvas {
    background: #fff;
    box-shadow: 0 8px 32px rgba(0,0,0,.18);
    border-radius: 2px;
}

#fieldMarkersOverlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.field-marker {
    position: absolute;
    pointer-events: all;
    cursor: grab;
    display: flex;
    align-items: center;
    gap: 4px;
    background: rgba(79, 70, 229, .12);
    border: 1.5px solid var(--color-primary);
    border-radius: var(--radius-sm);
    padding: 3px 9px;
    font-size: 11px;
    font-weight: 700;
    color: var(--color-primary-dark);
    white-space: nowrap;
    user-select: none;
    transition: box-shadow var(--transition), background var(--transition);
    z-index: 10;
    backdrop-filter: blur(2px);
}

.field-marker:hover {
    background: rgba(79, 70, 229, .22);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, .2);
}

.field-marker.dragging {
    cursor: grabbing;
    box-shadow: 0 6px 20px rgba(0, 0, 0, .22);
    z-index: 20;
    background: rgba(79, 70, 229, .3);
    border-color: var(--color-primary-dark);
}

.field-marker.qr-marker {
    background: rgba(245, 158, 11, .12);
    border-color: var(--color-warning);
    color: #92400e;
}

.field-marker.qr-marker:hover {
    background: rgba(245, 158, 11, .22);
    box-shadow: 0 0 0 3px rgba(245,158,11,.2);
}

.preview-info {
    padding: 10px 18px;
    border-top: 1px solid var(--color-border);
    font-size: 12px;
    color: var(--color-text-secondary);
    background: var(--color-surface-2);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.preview-info p {
    display: flex;
    align-items: center;
    gap: 6px;
}

.coord-readout {
    font-family: 'Courier New', monospace;
    font-size: 11.5px;
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-primary-subtle);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
}

/* ===================== PARAMETER CARD ===================== */
.param-card {
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 14px;
    margin-bottom: 10px;
    background: var(--color-surface-2);
    position: relative;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.param-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 3px rgba(79,70,229,.07);
}

.param-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.param-card-header span {
    font-weight: 700;
    font-size: 12.5px;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.param-card .form-row {
    flex-wrap: wrap;
}

/* ===================== MODAL ===================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15,23,42,.55);
    backdrop-filter: blur(3px);
}

.modal-content {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
    animation: modalIn .2s cubic-bezier(.34,1.56,.64,1);
}

@keyframes modalIn {
    from { transform: scale(.94) translateY(8px); opacity: 0; }
    to   { transform: scale(1) translateY(0);    opacity: 1; }
}

.modal-lg {
    max-width: 820px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px 16px;
    border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -.02em;
}

.modal-body {
    padding: 22px;
    overflow-y: auto;
    flex: 1;
}

.modal-body > p {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 22px;
    border-top: 1px solid var(--color-border);
    background: var(--color-surface-2);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

.pdf-frame {
    width: 100%;
    height: 520px;
    border: none;
    border-radius: var(--radius);
    background: var(--color-bg);
}

/* ===================== TOAST ===================== */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 9999;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 13px 18px;
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    box-shadow: var(--shadow-lg), 0 0 0 1px var(--color-border);
    font-size: 13px;
    font-weight: 500;
    animation: toastIn .3s cubic-bezier(.34,1.56,.64,1);
    min-width: 280px;
    max-width: 360px;
    pointer-events: all;
    transition: opacity .3s ease;
}

.toast-success { border-left: 4px solid var(--color-success); }
.toast-error   { border-left: 4px solid var(--color-danger); }
.toast-info    { border-left: 4px solid var(--color-primary); }

.toast i { font-size: 16px; flex-shrink: 0; }
.toast-success i { color: var(--color-success); }
.toast-error   i { color: var(--color-danger); }
.toast-info    i { color: var(--color-primary); }

@keyframes toastIn {
    from { transform: translateX(110%); opacity: 0; }
    to   { transform: translateX(0);   opacity: 1; }
}

/* ===================== PDF UPLOAD ===================== */
.pdf-upload-row {
    display: flex;
    gap: 8px;
    align-items: stretch;
}

.pdf-upload-row input[type="url"] {
    flex: 1;
    min-width: 0;
}

.pdf-upload-label {
    flex-shrink: 0;
    cursor: pointer;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 14px;
    font-size: 12.5px;
    font-weight: 600;
    border-radius: var(--radius);
    border: 1.5px solid var(--color-primary);
    color: var(--color-primary);
    background: transparent;
    transition: all var(--transition);
}

.pdf-upload-label:hover {
    background: var(--color-primary-subtle);
}

.hidden-file-input {
    display: none !important;
}

.pdf-upload-status {
    margin-top: 6px;
    font-size: 12.5px;
    font-weight: 500;
    padding: 7px 12px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 6px;
    line-height: 1.5;
}

.pdf-upload-status.upload-success {
    background: var(--color-success-light);
    color: #15803d;
    border: 1px solid #bbf7d0;
}

.pdf-upload-status.upload-success a {
    color: #15803d;
    font-weight: 700;
    text-decoration: underline;
    word-break: break-all;
}

.pdf-upload-status.upload-error {
    background: var(--color-danger-light);
    color: #b91c1c;
    border: 1px solid #fecaca;
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1024px) {
    .editor-layout {
        flex-direction: column;
        height: auto;
    }

    .editor-preview-panel {
        min-height: 420px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 200px;
    }
    .view { padding: 16px; }
    .top-bar { padding: 12px 16px; }
    .form-row { flex-direction: column; gap: 0; }
}