/* ===========================
   ResumeIQ — Design System
   =========================== */

:root {
    /* Colors — Dark (default) */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --bg-input: #111118;
    --border: #1e1e2e;
    --border-hover: #2a2a3e;
    --border-focus: #6366f1;
    --header-bg: rgba(10, 10, 15, 0.8);
    --shadow-card: rgba(0, 0, 0, 0.2);

    --text-primary: #e8e8ed;
    --text-secondary: #8888a0;
    --text-muted: #55556a;

    --accent-primary: #6366f1;
    --accent-secondary: #a855f7;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
    --accent-glow: rgba(99, 102, 241, 0.15);

    --green: #22c55e;
    --green-soft: rgba(34, 197, 94, 0.12);
    --red: #ef4444;
    --red-soft: rgba(239, 68, 68, 0.12);
    --yellow: #eab308;
    --yellow-soft: rgba(234, 179, 8, 0.12);
    --blue: #3b82f6;
    --blue-soft: rgba(59, 130, 246, 0.12);

    /* Typography */
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* Transitions */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===========================
   Light Theme
   =========================== */

[data-theme="light"] {
    --bg-primary: #f5f5f7;
    --bg-secondary: #eeeef0;
    --bg-card: #ffffff;
    --bg-card-hover: #f9f9fb;
    --bg-input: #f0f0f3;
    --border: #dcdce4;
    --border-hover: #c5c5d0;
    --border-focus: #6366f1;
    --header-bg: rgba(245, 245, 247, 0.85);
    --shadow-card: rgba(0, 0, 0, 0.06);

    --text-primary: #1a1a2e;
    --text-secondary: #5a5a72;
    --text-muted: #9090a8;

    --accent-glow: rgba(99, 102, 241, 0.1);

    --green-soft: rgba(34, 197, 94, 0.1);
    --red-soft: rgba(239, 68, 68, 0.1);
    --yellow-soft: rgba(234, 179, 8, 0.1);
    --blue-soft: rgba(59, 130, 246, 0.1);
}

[data-theme="light"] .bg-grid {
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.04) 1px, transparent 1px);
}

[data-theme="light"] .glow-orb { opacity: 0.2; }

[data-theme="light"] .orb-1 {
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15), transparent 70%);
}
[data-theme="light"] .orb-2 {
    background: radial-gradient(circle, rgba(168, 85, 247, 0.12), transparent 70%);
}
[data-theme="light"] .orb-3 {
    background: radial-gradient(circle, rgba(236, 72, 153, 0.08), transparent 70%);
}

[data-theme="light"] .pane-header {
    background: rgba(0, 0, 0, 0.01);
}

[data-theme="light"] .pane:focus-within {
    box-shadow: 0 0 0 3px var(--accent-glow), 0 8px 32px rgba(0,0,0,0.08);
}

[data-theme="light"] .score-card:hover {
    box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

[data-theme="light"] .category-bar-fill::after {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4));
}

/* ===========================
   Reset & Base
   =========================== */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    transition: background 0.4s var(--ease), color 0.4s var(--ease);
}

/* ===========================
   Animated Background
   =========================== */

.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 0;
    pointer-events: none;
}

.glow-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    pointer-events: none;
    z-index: 0;
    animation: orbFloat 20s infinite ease-in-out;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.25), transparent 70%);
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.2), transparent 70%);
    bottom: -50px;
    right: -50px;
    animation-delay: -7s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.15), transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -40px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(40px, 30px) scale(1.02); }
}

/* ===========================
   Header
   =========================== */

header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--header-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    transition: background 0.4s var(--ease), border-color 0.4s var(--ease);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--accent-glow);
    border: 1px solid rgba(99, 102, 241, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.logo-highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 400;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* ===========================
   Theme Toggle
   =========================== */

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    transition: all 0.3s var(--ease);
}

.theme-toggle:hover {
    border-color: var(--border-hover);
    color: var(--accent-primary);
    background: var(--accent-glow);
    transform: rotate(15deg);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    position: absolute;
    transition: all 0.4s var(--ease);
}

/* Dark mode: show moon, hide sun */
.theme-toggle .icon-sun {
    opacity: 0;
    transform: scale(0.5) rotate(-90deg);
}
.theme-toggle .icon-moon {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

/* Light mode: show sun, hide moon */
[data-theme="light"] .theme-toggle .icon-sun {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}
[data-theme="light"] .theme-toggle .icon-moon {
    opacity: 0;
    transform: scale(0.5) rotate(90deg);
}

/* ===========================
   Main Content
   =========================== */

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 24px 80px;
    position: relative;
    z-index: 1;
}

.section {
    margin-bottom: 48px;
}

.section-header {
    text-align: center;
    margin-bottom: 32px;
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: var(--accent-glow);
    color: var(--accent-primary);
    border: 1px solid rgba(99, 102, 241, 0.2);
    margin-bottom: 16px;
}

.badge-success {
    background: var(--green-soft);
    color: var(--green);
    border-color: rgba(34, 197, 94, 0.2);
}

.section-header h1 {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

/* ===========================
   Dual Pane Layout
   =========================== */

.dual-pane {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0;
    align-items: stretch;
}

.pane {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.pane:focus-within {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow), 0 8px 32px rgba(0,0,0,0.3);
}

.pane-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,0.01);
}

.pane-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.resume-icon {
    background: var(--blue-soft);
    color: var(--blue);
}

.jd-icon {
    background: var(--accent-glow);
    color: var(--accent-primary);
}

.pane-header h2 {
    font-size: 0.9rem;
    font-weight: 600;
    flex: 1;
}

.btn-clear {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s var(--ease);
}

.btn-clear:hover {
    background: var(--red-soft);
    color: var(--red);
}

textarea {
    flex: 1;
    min-height: 280px;
    padding: 20px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.88rem;
    line-height: 1.7;
    resize: vertical;
    outline: none;
}

textarea::placeholder {
    color: var(--text-muted);
}

.pane-footer {
    padding: 10px 20px;
    border-top: 1px solid var(--border);
}

.char-count {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Divider */
.pane-divider {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
    gap: 8px;
}

.divider-line {
    width: 1px;
    flex: 1;
    background: linear-gradient(to bottom, transparent, var(--border), transparent);
}

.divider-icon {
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--text-muted);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 10px;
    letter-spacing: 0.05em;
}

/* ===========================
   Action Row
   =========================== */

.action-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 28px;
}

.btn-analyze {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 12px;
    border: none;
    background: var(--accent-gradient);
    color: #fff;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s var(--ease);
    position: relative;
    overflow: hidden;
}

.btn-analyze::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s var(--ease);
}

.btn-analyze:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.35);
}

.btn-analyze:hover::before {
    opacity: 1;
}

.btn-analyze:active {
    transform: translateY(0);
}

.btn-analyze.loading .btn-text,
.btn-analyze.loading .btn-icon {
    opacity: 0;
}

.btn-analyze.loading .btn-loader {
    opacity: 1;
}

.btn-loader {
    position: absolute;
    width: 22px;
    height: 22px;
    border: 2.5px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    opacity: 0;
    animation: spin 0.7s linear infinite;
}

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

.btn-sample {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-family: var(--font);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s var(--ease);
}

.btn-sample:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
    background: var(--bg-card-hover);
    transform: translateY(-1px);
}

/* ===========================
   Results Section
   =========================== */

.hidden {
    display: none !important;
}

/* Score Grid */
.score-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.score-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: all 0.3s var(--ease);
    animation: fadeUp 0.6s var(--ease) both;
}

.score-card:nth-child(1) { animation-delay: 0.1s; }
.score-card:nth-child(2) { animation-delay: 0.2s; }
.score-card:nth-child(3) { animation-delay: 0.3s; }
.score-card:nth-child(4) { animation-delay: 0.4s; }

.score-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

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

/* Score Ring */
.score-ring {
    width: 100px;
    height: 100px;
    position: relative;
    margin: 0 auto 12px;
}

.score-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.ring-bg {
    fill: none;
    stroke: var(--border);
    stroke-width: 8;
}

.ring-fill {
    fill: none;
    stroke: url(#ringGradient);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 326.73;
    stroke-dashoffset: 326.73;
    transition: stroke-dashoffset 1.5s var(--ease);
}

.score-value {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--green);
    margin-bottom: 4px;
}

.score-gap-num {
    color: var(--red);
}

.score-strength-num {
    font-size: 1.6rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.score-sub {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* Analysis Grid */
.analysis-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.analysis-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    animation: fadeUp 0.6s var(--ease) 0.5s both;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.card-header h3 {
    font-size: 0.92rem;
    font-weight: 600;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 2px 10px;
    border-radius: 100px;
    font-size: 0.72rem;
    font-weight: 700;
}

.badge-green {
    background: var(--green-soft);
    color: var(--green);
}

.badge-red {
    background: var(--red-soft);
    color: var(--red);
}

/* Chart */
.chart-container {
    padding: 20px;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-container canvas {
    max-height: 260px;
}

/* Skills List */
.skills-list {
    padding: 16px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-height: 300px;
    overflow-y: auto;
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.78rem;
    font-weight: 500;
    transition: all 0.2s var(--ease);
}

.skill-tag.matched {
    background: var(--green-soft);
    color: var(--green);
    border: 1px solid rgba(34, 197, 94, 0.15);
}

.skill-tag.missing {
    background: var(--red-soft);
    color: var(--red);
    border: 1px solid rgba(239, 68, 68, 0.15);
}

.skill-tag:hover {
    transform: translateY(-1px);
}

/* Suggestions */
.suggestions-card {
    margin-bottom: 16px;
    animation: fadeUp 0.6s var(--ease) 0.7s both;
}

.suggestions-list {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.suggestion-item {
    display: flex;
    gap: 14px;
    padding: 16px;
    background: var(--bg-input);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all 0.2s var(--ease);
}

.suggestion-item:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.suggestion-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

.suggestion-icon.priority-high {
    background: var(--red-soft);
}

.suggestion-icon.priority-med {
    background: var(--yellow-soft);
}

.suggestion-icon.priority-low {
    background: var(--green-soft);
}

.suggestion-content h4 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.suggestion-content p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Category Bars */
#category-card {
    animation: fadeUp 0.6s var(--ease) 0.8s both;
}

.category-bars {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.category-bar-row {
    display: flex;
    align-items: center;
    gap: 14px;
}

.category-name {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    width: 140px;
    flex-shrink: 0;
    text-align: right;
}

.category-bar-track {
    flex: 1;
    height: 10px;
    background: var(--bg-input);
    border-radius: 100px;
    overflow: hidden;
    position: relative;
}

.category-bar-fill {
    height: 100%;
    border-radius: 100px;
    background: var(--accent-gradient);
    transition: width 1.2s var(--ease);
    position: relative;
}

.category-bar-fill::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2));
    border-radius: 100px;
}

.category-percent {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-primary);
    width: 42px;
    text-align: left;
}

/* ===========================
   Export Button
   =========================== */

.btn-export {
    border-color: var(--green);
    color: var(--green);
}

.btn-export:hover {
    background: var(--green-soft) !important;
    border-color: var(--green) !important;
    color: var(--green) !important;
}

/* ===========================
   Footer
   =========================== */

footer {
    text-align: center;
    padding: 32px 24px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.82rem;
    position: relative;
    z-index: 1;
}

footer strong {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===========================
   Scrollbar
   =========================== */

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-hover);
    border-radius: 100px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ===========================
   Responsive
   =========================== */

@media (max-width: 900px) {
    .dual-pane {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .pane-divider {
        flex-direction: row;
        padding: 8px 0;
    }

    .divider-line {
        width: auto;
        height: 1px;
        flex: 1;
        background: linear-gradient(to right, transparent, var(--border), transparent);
    }

    .score-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .analysis-grid {
        grid-template-columns: 1fr;
    }

    .section-header h1 {
        font-size: 1.7rem;
    }

    .header-inner {
        flex-direction: column;
        gap: 4px;
    }
}

@media (max-width: 600px) {
    .score-grid {
        grid-template-columns: 1fr 1fr;
    }

    .action-row {
        flex-direction: column;
    }

    .btn-analyze, .btn-sample {
        width: 100%;
        justify-content: center;
    }

    .category-name {
        width: 100px;
        font-size: 0.75rem;
    }
}