/* ═══════════════════════════════════════════════
   AiDocs 24 — Design System v7
   Light, clean, ultra-modern
   ═══════════════════════════════════════════════ */

:root {
    --c-primary: #4f6df5;
    --c-primary-hover: #3b57d9;
    --c-primary-light: rgba(79,109,245,0.08);
    --c-primary-glow: rgba(79,109,245,0.25);

    --c-accent: #7c5cfc;
    --c-accent-light: rgba(124,92,252,0.08);

    --c-success: #10b981;
    --c-success-hover: #059669;
    --c-success-light: rgba(16,185,129,0.08);

    --c-danger: #ef4444;
    --c-danger-light: rgba(239,68,68,0.08);

    --c-warning: #f59e0b;
    --c-warning-light: rgba(245,158,11,0.08);

    --c-text: #1e293b;
    --c-text-secondary: #64748b;
    --c-text-muted: #94a3b8;

    --c-bg: #f8f9fc;
    --c-surface: #ffffff;
    --c-border: #e5e7ee;
    --c-border-hover: #cbd0dc;

    --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
    --font-display: "Inter", var(--font);

    --radius-xs: 8px;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.02);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.03);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.03);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.04);

    --ease: cubic-bezier(0.16,1,0.3,1);
    --ease-spring: cubic-bezier(0.34,1.56,0.64,1);
    --dur: 0.25s;
}

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

body {
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.6;
    color: var(--c-text);
    background: var(--c-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-primary-hover); }

h1,h2,h3,h4 {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

/* ── Container ─────────────────────────────── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Navbar ─────────────────────────────────── */
.navbar {
    background: rgba(255,255,255,0.88);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--c-border);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
    animation: navIn 0.5s var(--ease) both;
}

@keyframes navIn {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.navbar .container {
    display: flex;
    align-items: center;
    gap: 1rem;
    height: 64px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--c-primary);
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-brand i {
    font-size: 1.5rem;
    color: var(--c-accent);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 4px;
    margin-left: auto;
    margin-right: auto;
}

.nav-menu li { flex-shrink: 0; }

.nav-menu a {
    text-decoration: none;
    color: var(--c-text-secondary);
    font-weight: 600;
    font-size: 0.88rem;
    padding: 8px 14px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color var(--dur) ease, background var(--dur) ease, transform var(--dur) var(--ease-spring), box-shadow var(--dur) ease;
}

.nav-menu a i {
    font-size: 0.95rem;
    opacity: 0.75;
}

.nav-menu a:hover {
    color: var(--c-primary);
    background: var(--c-primary-light);
    transform: translateY(-1px);
}

.nav-menu a.active {
    background: var(--c-primary);
    color: #fff;
    box-shadow: 0 4px 14px var(--c-primary-glow);
}

.nav-menu a.active i { opacity: 1; }

/* Nav user */
.nav-user {
    display: flex;
    align-items: center;
    margin-left: 8px;
    flex-shrink: 0;
    position: relative;
}

.nav-user-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: transparent;
    border: 1px solid var(--c-border);
    padding: 5px 12px 5px 5px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: border-color var(--dur) ease, box-shadow var(--dur) ease, background var(--dur) ease;
}

.nav-user-btn:hover {
    background: var(--c-surface);
    border-color: var(--c-border-hover);
    box-shadow: var(--shadow-sm);
}

.nav-avatar {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--c-primary-light), var(--c-accent-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-primary);
    font-size: 0.85rem;
}

.nav-user-meta {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.nav-user-name {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--c-text);
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-user-sub {
    font-size: 0.78rem;
    color: var(--c-text-muted);
}

.nav-user-caret {
    color: var(--c-text-muted);
    font-size: 0.7rem;
    transition: transform 0.2s ease;
}

.nav-user.open .nav-user-caret { transform: rotate(180deg); }

.nav-user-menu {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    min-width: 200px;
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(16px);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-xl);
    padding: 6px;
    opacity: 0;
    transform: translateY(-6px) scale(0.98);
    pointer-events: none;
    transition: all 0.2s var(--ease);
    z-index: 200;
}

.nav-user.open .nav-user-menu {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.nav-user-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-xs);
    text-decoration: none;
    color: var(--c-text);
    font-weight: 500;
    font-size: 0.9rem;
    transition: background var(--dur) ease;
}

.nav-user-item:hover { background: var(--c-primary-light); color: var(--c-primary); }

.nav-user-item i { width: 18px; text-align: center; opacity: 0.7; }

.nav-user-sep {
    height: 1px;
    background: var(--c-border);
    margin: 4px 8px;
}

/* Navbar — guest */
.navbar-guest .container { justify-content: center; }
.navbar-guest .nav-brand { justify-content: center; }

.nav-guest-actions { margin-left: auto; }

@media (max-width: 768px) {
    .nav-menu a .nav-text { display: none; }
    .nav-user-meta { display: none; }
    .navbar .container { gap: 0.5rem; }
    .nav-menu { gap: 2px; }
    .nav-menu a { padding: 8px 10px; }
}

@media (max-width: 480px) {
    .navbar .container { height: 56px; }
}

/* ── Main Content ──────────────────────────── */
.main-content {
    flex: 1 0 auto;
    padding: 32px 0;
}

/* ── Auth Pages ────────────────────────────── */
.auth-page {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 2rem 0 4rem;
}

.auth-card {
    width: 100%;
    max-width: 480px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem;
    animation: cardUp 0.55s var(--ease) both;
}

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

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 1rem;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--c-primary-light);
    color: var(--c-primary);
    font-size: 1.4rem;
}

.auth-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.35rem;
}

.auth-header .subtitle,
.auth-header p.subtitle {
    color: var(--c-text-secondary);
    font-size: 0.95rem;
}

.auth-alert {
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    margin-bottom: 1.25rem;
    font-size: 0.92rem;
}

.auth-alert-error {
    background: var(--c-danger-light);
    border: 1px solid rgba(239,68,68,0.2);
    color: #b91c1c;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.auth-field {
    position: relative;
}

.auth-field-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--c-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-text-muted);
    font-size: 0.85rem;
    z-index: 2;
    transition: color var(--dur) ease, background var(--dur) ease;
}

.auth-field:focus-within .auth-field-icon {
    background: var(--c-primary);
    color: #fff;
}

.auth-input {
    width: 100%;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    padding: 0.9rem 1rem 0.9rem 58px;
    font-size: 0.95rem;
    background: var(--c-surface);
    font-family: var(--font);
    transition: border-color var(--dur) ease, box-shadow var(--dur) ease;
}

.auth-input:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px var(--c-primary-light);
}

.auth-submit {
    width: 100%;
    justify-content: center;
    margin-top: 0.5rem;
}

.auth-footer {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--c-text-secondary);
    font-size: 0.92rem;
}

.auth-footer a { font-weight: 600; }

/* ── Cards / Sections ──────────────────────── */
.upload-section,
.editor-section,
.settings-section,
.tokens-section,
.results-section {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    animation: sectionIn 0.55s var(--ease) both;
}

@keyframes sectionIn {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

.upload-header,
.editor-header,
.settings-header,
.page-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.upload-header h1,
.editor-header h1,
.settings-header h1,
.page-header h1 {
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    color: var(--c-text);
    margin-bottom: 0.5rem;
}

.upload-header h1 i,
.editor-header h1 i,
.settings-header h1 i,
.page-header h1 i {
    color: var(--c-primary);
    margin-right: 0.5rem;
}

.subtitle {
    color: var(--c-text-secondary);
    font-size: 1rem;
    font-weight: 400;
}

/* ── Upload Area ───────────────────────────── */
.upload-area {
    border: 2px dashed var(--c-border);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    transition: border-color var(--dur) ease, background var(--dur) ease, transform 0.35s var(--ease);
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--c-primary);
    background: var(--c-primary-light);
}

.upload-area.drag-over {
    border-color: var(--c-success);
    background: var(--c-success-light);
    transform: scale(1.01);
}

.upload-icon {
    font-size: 3rem;
    color: var(--c-primary);
    margin-bottom: 1rem;
    opacity: 0.7;
}

.upload-text h3 {
    color: var(--c-text);
    margin-bottom: 0.5rem;
    font-size: 1.15rem;
}

.upload-text p {
    color: var(--c-text-muted);
    margin: 0.5rem 0 1rem;
}

.upload-info {
    margin-top: 1.25rem;
    color: var(--c-text-muted);
    font-size: 0.85rem;
}

/* ── Buttons ───────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0.7rem 1.25rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: transform var(--dur) var(--ease-spring), box-shadow var(--dur) ease, background var(--dur) ease, filter var(--dur) ease;
    text-decoration: none;
    line-height: 1.4;
}

.btn:active { transform: translateY(0) scale(0.98); }

.btn-primary {
    background: var(--c-primary);
    color: #fff;
    box-shadow: 0 2px 8px var(--c-primary-glow);
}

.btn-primary:hover {
    background: var(--c-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--c-primary-glow);
}

.btn-success {
    background: var(--c-success);
    color: #fff;
    box-shadow: 0 2px 8px rgba(16,185,129,0.25);
}

.btn-success:hover {
    background: var(--c-success-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16,185,129,0.3);
}

.btn-secondary {
    background: var(--c-surface);
    color: var(--c-text);
    border: 1px solid var(--c-border);
    box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
    background: var(--c-bg);
    border-color: var(--c-border-hover);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--c-primary);
    border: 1.5px solid var(--c-primary);
}

.btn-outline:hover {
    background: var(--c-primary-light);
}

.btn-sm { padding: 0.45rem 0.85rem; font-size: 0.82rem; border-radius: var(--radius-xs); }
.btn-lg { padding: 0.95rem 1.75rem; font-size: 1rem; border-radius: var(--radius-md); }
.btn-block { display: flex; width: 100%; }

/* ── Forms ─────────────────────────────────── */
.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.5rem;
}

.form-group label {
    color: var(--c-text);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group label i {
    color: var(--c-primary);
    font-size: 0.85rem;
    opacity: 0.7;
}

.form-control {
    width: 100%;
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
    font-family: var(--font);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    background: var(--c-surface);
    color: var(--c-text);
    transition: border-color var(--dur) ease, box-shadow var(--dur) ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 16 16'%3E%3Cpath fill='%2394a3b8' d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 2.5rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px var(--c-primary-light);
}

textarea.form-control {
    resize: vertical;
    background-image: none;
    padding-right: 1rem;
    line-height: 1.6;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="password"],
.form-group input[type="number"] {
    padding: 0.85rem 1rem;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: var(--font);
    transition: border-color var(--dur) ease, box-shadow var(--dur) ease;
    background: var(--c-surface);
}

.form-group input:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px var(--c-primary-light);
}

.form-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--c-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--c-border);
}

.form-section h3 {
    color: var(--c-text);
    font-size: 1.05rem;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--c-border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-section h3 i { color: var(--c-primary); opacity: 0.7; }

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-actions {
    text-align: center;
    margin-top: 2rem;
}

/* ── Spinner ───────────────────────────────── */
.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--c-border);
    border-top-color: var(--c-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 1.25rem;
}

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

.processing,
.processing-editor {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    margin-top: 2rem;
}

.processing h3,
.processing-editor h3 {
    color: var(--c-text);
    margin-bottom: 0.5rem;
}

.processing p,
.processing-editor p {
    color: var(--c-text-secondary);
}

/* ── Result Cards ──────────────────────────── */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.result-card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s var(--ease), box-shadow 0.3s ease;
}

.result-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
    color: #fff;
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-header i { font-size: 1.25rem; }
.card-header h3 { margin: 0; font-size: 1.05rem; font-weight: 600; }

.card-body { padding: 1.5rem; }

.file-name {
    font-weight: 600;
    color: var(--c-text);
    margin-bottom: 0.5rem;
}

.changes-info,
.processing-info {
    color: var(--c-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.success-card { border: 1px solid var(--c-border); }
.success-card .card-header {
    background: linear-gradient(135deg, var(--c-success) 0%, #059669 100%);
}

.editor-result { margin-top: 2rem; }

.changes-summary {
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.changes-summary h3 {
    font-size: 1.05rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ── Issues ────────────────────────────────── */
.issues-section,
.fields-section { margin: 2rem 0; }

.issues-section h3,
.fields-section h3 {
    color: var(--c-text);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--c-border);
}

.issue-item {
    background: var(--c-surface);
    border-left: 3px solid var(--c-warning);
    padding: 1rem;
    margin-bottom: 0.75rem;
    border-radius: var(--radius-xs);
    border: 1px solid var(--c-border);
    border-left: 3px solid var(--c-warning);
}

.issue-item.critical { border-left-color: var(--c-danger); }
.issue-item.important { border-left-color: var(--c-warning); }
.issue-item.low { border-left-color: var(--c-text-muted); }

.issue-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.issue-title { font-weight: 600; color: var(--c-text); }

.issue-severity {
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 600;
    color: #fff;
}

.issue-severity.critical { background: var(--c-danger); }
.issue-severity.important { background: var(--c-warning); }
.issue-severity.low { background: var(--c-text-muted); }

.issue-description { color: var(--c-text-secondary); margin-bottom: 0.5rem; font-size: 0.9rem; }
.issue-recommendation { color: var(--c-success); font-size: 0.9rem; }

.field-item {
    background: var(--c-primary-light);
    padding: 0.85rem 1rem;
    margin-bottom: 0.5rem;
    border-radius: var(--radius-xs);
    border-left: 3px solid var(--c-primary);
}

.field-name { font-weight: 600; color: var(--c-primary); margin-bottom: 0.2rem; font-size: 0.92rem; }
.field-location { color: var(--c-text-muted); font-size: 0.82rem; }

/* ── Alerts ────────────────────────────────── */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.92rem;
    border: 1px solid transparent;
}

.alert i { font-size: 1.1rem; margin-top: 2px; flex-shrink: 0; }

.alert-info {
    background: var(--c-primary-light);
    border-color: rgba(79,109,245,0.15);
    color: var(--c-text);
}

.alert-info i { color: var(--c-primary); }

.alert-success {
    background: var(--c-success-light);
    border-color: rgba(16,185,129,0.15);
    color: var(--c-text);
}

.alert-success i { color: var(--c-success); }

.alert-danger {
    background: var(--c-danger-light);
    border-color: rgba(239,68,68,0.15);
    color: var(--c-text);
}

.alert-danger i { color: var(--c-danger); }

/* ── Tokens Page ───────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
    color: #fff;
    padding: 1.25rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 4px 16px var(--c-primary-glow);
    transition: transform 0.3s var(--ease), box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 28px var(--c-primary-glow);
}

.stat-card.balance-card {
    background: linear-gradient(135deg, var(--c-success) 0%, #059669 100%);
    box-shadow: 0 4px 16px rgba(16,185,129,0.3);
}

.stat-card.balance-card:hover {
    box-shadow: 0 8px 28px rgba(16,185,129,0.35);
}

.stat-icon { font-size: 2rem; opacity: 0.85; }

.stat-info h3 {
    font-size: 0.82rem;
    font-weight: 500;
    opacity: 0.85;
    margin-bottom: 0.25rem;
    color: #fff;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: #fff !important;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.78rem;
    opacity: 0.75;
    color: #fff;
}

.refill-section {
    background: var(--c-bg);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
    border: 1px solid var(--c-border);
}

.refill-section h2 {
    margin-bottom: 1rem;
    color: var(--c-text);
    font-size: 1.1rem;
}

.refill-form {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.refill-form input {
    flex: 1;
    min-width: 180px;
    padding: 0.75rem 1rem;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: var(--font);
    transition: border-color var(--dur) ease, box-shadow var(--dur) ease;
}

.refill-form input:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px var(--c-primary-light);
}

.history-section { margin-top: 2rem; }

.history-section h2 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--c-text);
}

.history-controls { margin-bottom: 1rem; }

.history-table-container { overflow-x: auto; }

.history-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.history-table th {
    background: var(--c-bg);
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--c-text-secondary);
    border-bottom: 1px solid var(--c-border);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.history-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--c-border);
    color: var(--c-text);
}

.history-table tr:hover td { background: var(--c-primary-light); }

.history-table .loading {
    text-align: center;
    color: var(--c-text-muted);
    padding: 2rem;
}

/* ── Footer ────────────────────────────────── */
.footer {
    flex-shrink: 0;
    background: var(--c-surface);
    border-top: 1px solid var(--c-border);
    padding: 1.5rem 0;
    text-align: center;
    margin-top: auto;
}

.footer p {
    color: var(--c-text-muted);
    font-size: 0.85rem;
}

/* ── Action Buttons ────────────────────────── */
.action-buttons {
    margin-top: 2rem;
    text-align: center;
}

/* ── File upload improved ──────────────────── */
.file-upload-area {
    border: 2px dashed var(--c-border);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    transition: border-color var(--dur) ease, background var(--dur) ease, transform 0.35s var(--ease);
    cursor: pointer;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--c-bg);
}

.file-upload-area:hover {
    border-color: var(--c-primary);
    background: var(--c-primary-light);
}

.file-upload-area.dragover,
.file-upload-area.drag-over {
    border-color: var(--c-success);
    background: var(--c-success-light);
    transform: scale(1.01);
}

.file-upload-icon {
    font-size: 3rem;
    color: var(--c-primary);
    margin-bottom: 1rem;
    opacity: 0.6;
}

.file-upload-text h3 { color: var(--c-text); margin-bottom: 0.5rem; font-size: 1.1rem; }
.file-upload-text p { color: var(--c-text-muted); margin: 0.5rem 0 1.5rem; }

.file-info {
    text-align: center;
    padding: 1.5rem;
    background: var(--c-primary-light);
    border-radius: var(--radius-md);
    animation: fadeIn 0.3s var(--ease);
}

.file-info p { font-size: 1rem; color: var(--c-text); font-weight: 600; margin-bottom: 1rem; }
.file-info i { color: var(--c-primary); margin-right: 0.5rem; }

.btn-remove-file {
    background: var(--c-danger);
    color: #fff;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: background var(--dur) ease, transform var(--dur) var(--ease-spring);
}

.btn-remove-file:hover { background: #dc2626; transform: translateY(-1px); }

/* ── Responsive ────────────────────────────── */
@media (max-width: 768px) {
    .main-content { padding: 16px 0; }

    .upload-section,
    .editor-section,
    .settings-section,
    .tokens-section,
    .results-section {
        padding: 1.5rem;
        border-radius: var(--radius-md);
    }

    .upload-area,
    .file-upload-area { padding: 2rem 1rem; }

    .btn-lg { padding: 0.85rem 1.25rem; font-size: 0.92rem; }

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

    .issue-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }

    .auth-card { padding: 1.75rem; }
}

/* ── Animations ────────────────────────────── */
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .spinner { animation: spin 1.2s linear infinite !important; }
}