/* ===========================
   Pantone Color Matcher Styles
   =========================== */

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

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --border-radius: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
    padding: 20px;
}

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

/* ===== Header ===== */
.header {
    text-align: center;
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    margin-bottom: 30px;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.stats {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== Input Section ===== */
.input-section {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    margin-bottom: 30px;
}

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

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

.input-row {
    display: flex;
    gap: 10px;
}

#hexInput {
    flex: 1;
    padding: 12px 16px;
    font-size: 1.1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: 'Courier New', monospace;
    transition: all 0.2s;
}

#hexInput:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

#hexInput.invalid {
    border-color: var(--error-color);
}

#colorPicker {
    width: 60px;
    height: 48px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
}

.input-hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* ===== Buttons ===== */
.button-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    flex: 1;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--bg-color);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: white;
}

/* ===== Recent Colors ===== */
.recent-colors-container {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.recent-colors-container h3 {
    font-size: 1rem;
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.recent-colors-list {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.recent-color-item {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid var(--border-color);
    transition: all 0.2s;
}

.recent-color-item:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

/* ===== Results Section ===== */
.results-section {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    margin-bottom: 30px;
    min-height: 200px;
}

.welcome-message {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px 20px;
}

.features {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
}

.feature .icon {
    font-size: 1.5rem;
}

/* ===== Input Color Display ===== */
.input-color-display {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: var(--bg-color);
    border-radius: var(--border-radius);
    margin-bottom: 30px;
}

.input-color-display .color-swatch {
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.input-color-display .color-info h3 {
    margin-bottom: 5px;
}

.input-color-display .color-hex {
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    font-weight: bold;
    margin: 5px 0;
}

.input-color-display .color-rgb {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== Results Title ===== */
.results-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

/* ===== Matches Grid ===== */
.matches-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

.match-card {
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    position: relative;
    transition: all 0.2s;
}

.match-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.match-rank {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--primary-color);
    color: white;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: bold;
}

.match-colors {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.color-swatch {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.color-swatch.large {
    width: 100px;
    height: 100px;
}

.vs-separator {
    font-size: 1.5rem;
    color: var(--text-secondary);
}

/* ===== Match Info ===== */
.match-name {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.match-code {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.match-quality {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.quality-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: bold;
}

.match-quality.perfect .quality-badge {
    background: #dcfce7;
    color: #166534;
}

.match-quality.excellent .quality-badge {
    background: #dbeafe;
    color: #1e40af;
}

.match-quality.good .quality-badge {
    background: #fef3c7;
    color: #92400e;
}

.match-quality.fair .quality-badge {
    background: #fed7aa;
    color: #9a3412;
}

.match-quality.poor .quality-badge {
    background: #fee2e2;
    color: #991b1b;
}

.delta-e {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
}

/* ===== Color Values ===== */
.color-values {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.value-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.value-row .label {
    font-weight: 600;
    color: var(--text-secondary);
}

.value-row .value {
    font-family: 'Courier New', monospace;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.copy-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.copy-btn:hover {
    opacity: 1;
}

/* ===== Error Message ===== */
.error-message {
    text-align: center;
    padding: 40px 20px;
    color: var(--error-color);
}

.error-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 10px;
}

/* ===== Toast Notification ===== */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--text-primary);
    color: white;
    padding: 12px 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s;
    z-index: 1000;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: 20px;
    color: white;
    font-size: 0.9rem;
}

.footer a {
    color: white;
    text-decoration: underline;
}

.disclaimer {
    margin-top: 10px;
    font-size: 0.8rem;
    opacity: 0.8;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }

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

    .features {
        flex-direction: column;
        gap: 15px;
    }

    .input-color-display {
        flex-direction: column;
        align-items: flex-start;
    }

    .button-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .header {
        padding: 30px 20px;
    }

    .input-section,
    .results-section {
        padding: 20px;
    }

    .match-card {
        padding: 15px;
    }
}