:root {
    --bg-dark: #0a0f1e;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --project-accent: #8b5cf6;
    --project-hover: #7c3aed;
    --secondary: #1e293b;
    --text-main: #f0f6ff;
    --text-muted: #7a8aaa;
    --glass-bg: rgba(18, 27, 50, 0.65);
    --glass-border: rgba(255, 255, 255, 0.07);
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --gradient-blob-1: radial-gradient(circle, rgba(59,130,246,0.28) 0%, rgba(10,15,30,0) 70%);
    --gradient-blob-2: radial-gradient(circle, rgba(139,92,246,0.28) 0%, rgba(10,15,30,0) 70%);
    --gradient-blob-3: radial-gradient(circle, rgba(16,185,129,0.15) 0%, rgba(10,15,30,0) 70%);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 20px 16px 60px;
    position: relative;
    overflow-x: hidden;
}

/* ── Background ───────────────────────────────────────── */
.app-background {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}
.blob {
    position: absolute;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    filter: blur(90px);
    animation: float 22s infinite alternate ease-in-out;
}
.blob-1 { top: -20%; left: -10%; background: var(--gradient-blob-1); animation-delay: 0s; }
.blob-2 { bottom: -20%; right: -10%; background: var(--gradient-blob-2); animation-delay: -6s; }
.blob-3 { top: 45%; left: 35%; background: var(--gradient-blob-3); animation-delay: -12s; }
@keyframes float {
    0%   { transform: translate(0, 0) scale(1); }
    50%  { transform: translate(80px, 60px) scale(1.08); }
    100% { transform: translate(-60px, 130px) scale(0.92); }
}

/* ── Page Layout ──────────────────────────────────────── */
.page-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 640px;
    padding-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

/* ── Top Nav ──────────────────────────────────────────── */
.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: -0.02em;
}
.brand-icon {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 800;
    font-size: 0.72rem;
    color: white;
}
.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s;
}
.nav-link:hover { color: var(--text-main); }

/* ── Mode Tabs ────────────────────────────────────────── */
.mode-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 5px;
}
.tab-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 16px;
    border-radius: 12px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.22s ease;
}
.tab-btn.active[data-tab="resume"] {
    background: rgba(59,130,246,0.15);
    color: #93c5fd;
    border: 1px solid rgba(59,130,246,0.3);
}
.tab-btn.active[data-tab="project"] {
    background: rgba(139,92,246,0.15);
    color: #c4b5fd;
    border: 1px solid rgba(139,92,246,0.3);
}
.tab-btn:not(.active):hover {
    background: rgba(255,255,255,0.06);
    color: var(--text-main);
}

/* ── Upload Card (shared base) ────────────────────────── */
.upload-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    box-shadow: 0 30px 60px -15px rgba(0,0,0,0.6);
    animation: fadeUp 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
    opacity: 0;
    transform: translateY(14px);
}
.upload-card--project {
    border-color: rgba(139,92,246,0.15);
}
@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}

/* ── Card Header ──────────────────────────────────────── */
.card-header {
    display: flex;
    align-items: center;
    gap: 16px;
}
.doc-icon {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}
.doc-icon--resume {
    background: linear-gradient(135deg, rgba(59,130,246,0.2), rgba(99,102,241,0.2));
    border: 1px solid rgba(99,102,241,0.35);
    color: #93c5fd;
}
.doc-icon--project {
    background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(167,139,250,0.2));
    border: 1px solid rgba(139,92,246,0.35);
    color: #c4b5fd;
}
.card-header h1 {
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: -0.04em;
}
.card-subtitle {
    color: var(--text-muted);
    font-size: 0.84rem;
    margin-top: 3px;
    line-height: 1.4;
}

/* ── Info Banner ──────────────────────────────────────── */
.info-banner {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    background: rgba(59,130,246,0.08);
    border: 1px solid rgba(59,130,246,0.2);
    border-radius: 12px;
    padding: 11px 14px;
    font-size: 0.8rem;
    color: #93c5fd;
    line-height: 1.5;
}
.info-banner--project {
    background: rgba(139,92,246,0.08);
    border-color: rgba(139,92,246,0.22);
    color: #c4b5fd;
}
.info-banner svg { flex-shrink: 0; margin-top: 1px; }

/* ── Schema Hint ──────────────────────────────────────── */
.schema-hint {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    overflow: hidden;
}
.schema-hint__header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    cursor: pointer;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: color 0.2s;
    user-select: none;
}
.schema-hint__header:hover { color: var(--text-main); }
.schema-hint__header span { flex: 1; }
.schema-hint__header .chevron { transition: transform 0.25s ease; }
.schema-hint__header[aria-expanded="true"] .chevron { transform: rotate(180deg); }

.schema-hint__body { padding: 4px 16px 16px; animation: fadeUp 0.2s ease forwards; }
.schema-note { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 10px; }
.schema-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.schema-tag {
    background: rgba(139,92,246,0.12);
    border: 1px solid rgba(139,92,246,0.25);
    color: #c4b5fd;
    font-size: 0.73rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 100px;
    letter-spacing: 0.01em;
}

/* ── Drop Zone ────────────────────────────────────────── */
.drop-zone {
    border: 2px dashed rgba(255,255,255,0.1);
    border-radius: 18px;
    padding: 40px 24px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.22s, background 0.22s;
    background: rgba(10, 15, 30, 0.4);
}
.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.06);
}
.drop-zone--project:hover,
.drop-zone--project.dragover {
    border-color: var(--project-accent);
    background: rgba(139, 92, 246, 0.06);
}
.drop-zone.dragover .drop-icon { transform: scale(1.15) translateY(-5px); color: var(--primary); }
.drop-zone--project.dragover .drop-icon { color: var(--project-accent); }
.drop-zone-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    pointer-events: none;
}
.drop-icon {
    color: var(--text-muted);
    margin-bottom: 6px;
    transition: transform 0.3s, color 0.3s;
}
.drop-title { font-size: 1rem; font-weight: 700; color: var(--text-main); }
.drop-sub   { font-size: 0.875rem; color: var(--text-muted); }
.browse-link {
    color: var(--primary);
    text-decoration: underline;
    cursor: pointer;
    pointer-events: all;
}
.browse-link--project { color: var(--project-accent); }
.drop-hint { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; opacity: 0.7; }

/* ── File Preview ─────────────────────────────────────── */
.file-preview {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-radius: 14px;
    padding: 14px 18px;
    animation: fadeUp 0.25s ease forwards;
}
.file-preview--project {
    background: rgba(139, 92, 246, 0.08);
    border-color: rgba(139, 92, 246, 0.25);
}
.file-info { display: flex; align-items: center; gap: 12px; }
.file-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}
.file-icon--resume { background: rgba(59,130,246,0.2); color: var(--primary); }
.file-icon--project { background: rgba(139,92,246,0.2); color: var(--project-accent); }
.file-name { font-size: 0.88rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 300px; }
.file-size { font-size: 0.73rem; color: var(--text-muted); margin-top: 2px; }
.remove-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s, background 0.2s;
}
.remove-btn:hover { color: var(--error); background: rgba(239,68,68,0.1); }

/* ── Options Row ──────────────────────────────────────── */
.options-row {
    border-top: 1px solid var(--glass-border);
    padding-top: 18px;
}
.toggle-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    gap: 16px;
}
.toggle-text span:first-child { font-size: 0.88rem; font-weight: 600; display: block; margin-bottom: 2px; }
.toggle-hint { font-size: 0.76rem; color: var(--text-muted); }
.toggle-wrap { position: relative; flex-shrink: 0; }
.toggle-wrap input { display: none; }
.toggle-track {
    display: block;
    width: 44px;
    height: 24px;
    border-radius: 100px;
    background: rgba(255,255,255,0.1);
    border: 1px solid var(--glass-border);
    position: relative;
    transition: background 0.25s, border-color 0.25s;
    cursor: pointer;
}
.toggle-track::after {
    content: '';
    position: absolute;
    top: 3px; left: 3px;
    width: 16px; height: 16px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: transform 0.25s, background 0.25s;
}
.toggle-wrap input:checked + .toggle-track { background: var(--primary); border-color: var(--primary); }
.toggle-wrap input:checked + .toggle-track::after { transform: translateX(20px); background: white; }

/* ── Upload Button ────────────────────────────────────── */
.upload-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 15px;
    border-radius: 14px;
    border: none;
    color: white;
    font-size: 0.93rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.2s, box-shadow 0.2s;
    letter-spacing: -0.01em;
}
.upload-btn--resume {
    background: linear-gradient(135deg, #3b82f6, #6366f1);
    box-shadow: 0 8px 24px rgba(59,130,246,0.3);
}
.upload-btn--project {
    background: linear-gradient(135deg, #8b5cf6, #6d28d9);
    box-shadow: 0 8px 24px rgba(139,92,246,0.3);
}
.upload-btn:hover:not(:disabled) { opacity: 0.9; transform: translateY(-2px); }
.upload-btn--resume:hover:not(:disabled) { box-shadow: 0 14px 30px rgba(59,130,246,0.4); }
.upload-btn--project:hover:not(:disabled) { box-shadow: 0 14px 30px rgba(139,92,246,0.4); }
.upload-btn:active:not(:disabled) { transform: translateY(0); }
.upload-btn:disabled { opacity: 0.35; cursor: not-allowed; box-shadow: none; }

/* ── Progress ─────────────────────────────────────────── */
.progress-wrap {
    display: flex;
    flex-direction: column;
    gap: 10px;
    animation: fadeUp 0.25s ease forwards;
}
.progress-bar-track {
    height: 5px;
    background: rgba(255,255,255,0.07);
    border-radius: 100px;
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    width: 0%;
    border-radius: 100px;
    transition: width 0.45s ease;
}
.progress-bar-fill--resume  { background: linear-gradient(90deg, #3b82f6, #6366f1); }
.progress-bar-fill--project { background: linear-gradient(90deg, #8b5cf6, #6d28d9); }
.progress-label { font-size: 0.8rem; color: var(--text-muted); text-align: center; }

/* ── Result Card ──────────────────────────────────────── */
.result-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    box-shadow: 0 30px 60px -15px rgba(0,0,0,0.6);
    animation: fadeUp 0.35s ease forwards;
    opacity: 0;
    transform: translateY(14px);
}
.result-header { display: flex; align-items: center; gap: 14px; }
.result-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}
.result-icon.success { background: rgba(16,185,129,0.15); color: var(--success); }
.result-icon.error   { background: rgba(239,68,68,0.15);   color: var(--error); }
.result-title   { font-size: 1.1rem; font-weight: 800; letter-spacing: -0.02em; }
.result-subtitle { font-size: 0.84rem; color: var(--text-muted); margin-top: 3px; line-height: 1.4; }

/* Metadata Grid */
.meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.meta-item {
    background: rgba(10,15,30,0.5);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 12px 14px;
}
.meta-label {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 5px;
}
.meta-value { font-size: 0.87rem; font-weight: 500; color: var(--text-main); word-break: break-word; line-height: 1.4; }
.meta-item.full-width { grid-column: 1 / -1; }

.skills-list { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 5px; }
.skill-tag {
    background: rgba(59,130,246,0.12);
    border: 1px solid rgba(59,130,246,0.25);
    color: #93c5fd;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 3px 9px;
    border-radius: 100px;
}
.skill-tag--project {
    background: rgba(139,92,246,0.12);
    border-color: rgba(139,92,246,0.25);
    color: #c4b5fd;
}

.chunks-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.3);
    color: var(--success);
    font-size: 0.76rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 100px;
    margin-top: 4px;
}

.sub-chunks-list { margin-top: 8px; display: flex; flex-direction: column; gap: 4px; }
.sub-chunk-item {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.sub-chunk-item svg { color: var(--success); flex-shrink: 0; }

/* Result Actions */
.result-actions {
    display: flex;
    gap: 12px;
    border-top: 1px solid var(--glass-border);
    padding-top: 18px;
}
.action-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    border-radius: 12px;
    font-size: 0.87rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    border: none;
    letter-spacing: -0.01em;
}
.action-btn.primary {
    background: linear-gradient(135deg, var(--primary), #6366f1);
    color: white;
    box-shadow: 0 6px 20px rgba(59,130,246,0.28);
}
.action-btn.primary:hover { opacity: 0.9; transform: translateY(-1px); }
.action-btn.secondary {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
}
.action-btn.secondary:hover { background: rgba(255,255,255,0.09); color: var(--text-main); }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 640px) {
    body { padding: 12px 12px 48px; }
    .upload-card, .result-card { padding: 22px; }
    .meta-grid { grid-template-columns: 1fr; }
    .meta-item.full-width { grid-column: 1; }
    .result-actions { flex-direction: column; }
    .file-name { max-width: 200px; }
    .mode-tabs { border-radius: 14px; }
}