:root {
    --bg-primary: #0f1117;
    --bg-secondary: #1a1d27;
    --bg-tertiary: #151820;
    --accent: #d4006e;
    --accent-hover: #e6206f;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --success: #16a34a;
    --warning: #ea6800;
    --danger: #dc2626;
    --border: #2d3148;
    --border-subtle: #3d4158;
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #fafafa;
    --accent: #d4006e;
    --accent-hover: #b5005d;
    --text-primary: #333333;
    --text-secondary: #666666;
    --success: #16a34a;
    --warning: #ea6800;
    --danger: #dc2626;
    --border: #e5e7eb;
    --border-subtle: #d1d5db;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: var(--bg-secondary);
    border-bottom: 3px solid var(--accent);
    padding: 12px 0;
    margin-bottom: 30px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-img {
    max-height: 40px;
    width: auto;
}

.header-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.header-right {
    display: flex;
    gap: 20px;
    align-items: center;
}

.user-info {
    color: var(--text-secondary);
    font-size: 14px;
}

button, .btn {
    background-color: var(--accent);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    font-family: Helvetica, Arial, sans-serif;
}

button:hover, .btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(212, 0, 110, 0.3);
}

button:active {
    transform: translateY(0);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

button.secondary {
    background-color: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 9px 19px;
}

button.secondary:hover {
    background-color: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 20px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge.verde {
    background-color: rgba(22, 163, 74, 0.15);
    color: var(--success);
    border: 1px solid var(--success);
}

.badge.amarillo {
    background-color: rgba(202, 138, 0, 0.15);
    color: #ca8a00;
    border: 1px solid #ca8a00;
}

.badge.rojo {
    background-color: rgba(220, 38, 38, 0.15);
    color: var(--danger);
    border: 1px solid var(--danger);
}

.badge-subiendo {
    background-color: rgba(22, 163, 74, 0.15);
    color: var(--success);
    border: 1px solid var(--success);
}

.badge-bajando {
    background-color: rgba(220, 38, 38, 0.15);
    color: var(--danger);
    border: 1px solid var(--danger);
}

.badge-estable {
    background-color: rgba(148, 163, 184, 0.15);
    color: var(--text-secondary);
    border: 1px solid var(--text-secondary);
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

input, textarea, select {
    width: 100%;
    padding: 10px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 14px;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(212, 0, 110, 0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th {
    background-color: var(--border);
    color: var(--text-primary);
    padding: 12px;
    text-align: left;
    border-bottom: 2px solid var(--border);
    font-weight: 600;
}

td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
}

tr:nth-child(even) {
    background-color: rgba(21, 24, 32, 0.5);
}

tr:hover {
    background-color: var(--bg-secondary);
}

.progress-bar {
    background-color: var(--border);
    height: 12px;
    border-radius: 6px;
    overflow: hidden;
    margin-top: 8px;
    position: relative;
}

.progress-fill {
    height: 100%;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

.progress-marker {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--warning);
    z-index: 2;
}

.alert {
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.alert.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid var(--danger);
}

.alert.success {
    background-color: rgba(34, 197, 94, 0.1);
    color: var(--success);
    border: 1px solid var(--success);
}

.login-form {
    max-width: 400px;
    margin: 100px auto;
    padding: 40px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.login-form h1 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--accent);
}

.score-display {
    font-size: 32px;
    font-weight: bold;
    color: var(--accent);
    margin-bottom: 10px;
}

.trend-icon {
    font-size: 20px;
    margin-left: 10px;
}

.domain-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.domain-badge {
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 12px;
}

.timeline {
    margin-top: 20px;
}

.timeline-item {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.timeline-item:last-child {
    border-bottom: none;
}

.timeline-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--accent);
    margin-top: 4px;
    flex-shrink: 0;
}

.timeline-content {
    flex: 1;
}

.loading {
    display: none;
    text-align: center;
    padding: 20px;
}

.loading.active {
    display: block;
}

.spinner {
    display: inline-block;
    width: 30px;
    height: 30px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.section-hero {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border);
}

.section-hero h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.section-hero p {
    font-size: 16px;
    color: var(--text-secondary);
}

.chart-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

.profile-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.profile-info h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.profile-info p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 4px;
}

.certification-badge {
    display: inline-block;
    padding: 6px 12px;
    background-color: var(--success);
    color: #fff;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    margin-top: 8px;
}

.notes-section {
    margin-top: 30px;
}

.note-item {
    background-color: var(--bg-tertiary);
    border-left: 3px solid var(--accent);
    padding: 15px;
    margin-bottom: 12px;
    border-radius: 4px;
}

.note-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

.note-text {
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
}

.button-group {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.interpretation-text {
    background-color: var(--bg-tertiary);
    border-left: 3px solid var(--accent);
    padding: 15px;
    margin-top: 15px;
    border-radius: 4px;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.breadcrumb {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 20px;
}

.breadcrumb a {
    color: var(--accent);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* Logo: en dark mode invertir para que se vea blanco */
.nubilink-logo {
    filter: brightness(0) invert(1);
}

[data-theme="light"] .nubilink-logo {
    filter: none;
}

/* Input/select en light */
[data-theme="light"] input,
[data-theme="light"] select,
[data-theme="light"] textarea {
    background-color: #ffffff;
    color: #333333;
    border-color: #d1d5db;
}

[data-theme="light"] tr:nth-child(even) {
    background-color: #f9f9fb;
}

[data-theme="light"] tr:hover {
    background-color: #f0f0f0;
}

@media (max-width: 768px) {
    .two-column {
        grid-template-columns: 1fr;
    }

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

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

    .section-hero h1 {
        font-size: 24px;
    }

    .header-left {
        gap: 10px;
    }

    .logo-img {
        max-height: 35px;
    }

    .header-title {
        font-size: 16px;
    }

    .header-right {
        gap: 10px;
    }

    button, .btn {
        padding: 8px 16px;
        font-size: 13px;
    }

    table {
        font-size: 12px;
    }

    th, td {
        padding: 8px;
    }
}