/* Common styles shared across all pages */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #f97316;
    --primary-dark: #ea580c;
    --secondary: #34d399;
    --danger: #f87171;
    --warning: #fbbf24;
    --dark: #0a0a0a;
    --gray: #a1a1aa;
    --light: #18181b;
    --white: #fafafa;
    --card-bg: #18181b;
    --input-bg: #0a0a0a;
    --border: #27272a;
    --shadow: 0 10px 40px rgba(0,0,0,0.7);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.8);
    --radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #000000;
    background-image:
        radial-gradient(at 0% 0%, rgba(249, 115, 22, 0.25) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(251, 146, 60, 0.20) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(249, 115, 22, 0.22) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(251, 146, 60, 0.18) 0px, transparent 50%);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--white);
}

/* Header */
header {
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--white);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.logo span:first-child {
    font-size: 2rem;
    line-height: 1;
    display: flex;
    align-items: center;
}

.all-tools-btn {
    padding: 10px 20px;
    background: var(--primary);
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}

.all-tools-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(249, 115, 22, 0.4);
}

/* Container */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Typography */
h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #fb923c 0%, #ea580c 50%, #dc2626 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--gray);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

/* Workspace */
.workspace {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.info-section {
    margin-top: 40px;
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius);
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

/* Form Elements */
.input-group {
    margin-bottom: 20px;
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--white);
}

textarea,
input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-family: 'Courier New', monospace;
    font-size: 16px; /* 16px prevents iOS auto-zoom */
    background: var(--input-bg);
    color: var(--white);
    transition: var(--transition);
}

textarea {
    min-height: 150px;
    resize: vertical;
}

textarea:focus,
input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
}

textarea::placeholder,
input::placeholder {
    color: var(--gray);
}

select {
    padding: 12px;
    border: 2px solid var(--border);
    border-radius: 10px;
    background: var(--input-bg);
    color: var(--white);
    cursor: pointer;
    font-size: 16px; /* 16px prevents iOS auto-zoom */
    width: 100%;
}

input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary);
    cursor: pointer;
}

input[type="color"] {
    width: 60px;
    height: 40px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 5px;
    background: var(--border);
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 0 10px rgba(249, 115, 22, 0.5);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none;
    box-shadow: 0 0 10px rgba(249, 115, 22, 0.5);
}

/* Buttons */
.button-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.95rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px; /* Google recommends 48px tap target; 44px is Apple's minimum */
    touch-action: manipulation; /* Prevent double-tap zoom on mobile */
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(249, 115, 22, 0.4);
}

.btn-secondary {
    background: var(--light);
    color: var(--white);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--border);
}

.btn-success {
    background: var(--secondary);
    color: var(--dark);
}

.btn-success:hover {
    background: #10b981;
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--danger);
    color: var(--white);
}

/* Output Container */
.output-container {
    background: var(--light);
    border-radius: 10px;
    padding: 20px;
    border-left: 4px solid var(--primary);
    display: none;
}

.output-container.show {
    display: block;
}

.output-label {
    font-size: 0.85rem;
    color: var(--gray);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.output-content {
    font-family: 'Courier New', monospace;
    white-space: pre-wrap;
    word-break: break-all;
    color: var(--white);
    line-height: 1.6;
}

/* Stats Bar */
.stats-bar {
    display: flex;
    gap: 25px;
    padding: 15px;
    background: var(--light);
    border-radius: 10px;
    margin-top: 15px;
    border: 1px solid var(--border);
    flex-wrap: wrap;
}

.stat {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--gray);
}

.stat-value {
    font-weight: 700;
    color: var(--white);
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--secondary);
    color: var(--dark);
    padding: 16px 28px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
    z-index: 1000;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.toast.error {
    background: var(--danger);
    color: var(--white);
}

.toast.warning {
    background: var(--warning);
    color: var(--dark);
}

.info-section h2 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.info-section h3 {
    color: var(--white);
    font-size: 1.05rem;
    font-weight: 700;
    margin-top: 28px;
    margin-bottom: 10px;
}

.info-section p {
    color: var(--gray);
    line-height: 1.75;
    margin-bottom: 12px;
}

.info-section ul,
.info-section ol {
    color: var(--gray);
    line-height: 1.75;
    margin-bottom: 12px;
    padding-left: 1.4em;
}

.info-section li {
    margin-bottom: 6px;
}

.info-section code {
    background: rgba(249,115,22,0.1);
    color: #fb923c;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.88em;
}

.info-section pre {
    overflow-x: auto;
    margin: 14px 0;
}

.info-section pre code {
    background: none;
    color: inherit;
    padding: 0;
    border-radius: 0;
    font-size: inherit;
}

.info-section strong {
    color: var(--white);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    .workspace {
        padding: 25px;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* Fix stats bar on mobile */
    .stats-bar {
        flex-direction: column;
        gap: 10px;
    }
    
    .stat {
        width: 100%;
        justify-content: space-between;
    }
    
    /* Fix input groups on mobile */
    .input-group {
        margin-bottom: 15px;
    }
    
    textarea,
    input[type="text"],
    input[type="number"],
    select {
        font-size: 16px; /* Prevent zoom on iOS */
        width: 100%;
    }

    /* ── Inline grid overrides ── */
    /* 2-column */
    [style*="grid-template-columns: 1fr 1fr"],
    [style*="grid-template-columns: 2fr 1fr"],
    [style*="grid-template-columns: 1fr 2fr"],
    [style*="grid-template-columns: 3fr 1fr"],
    [style*="grid-template-columns: 1fr 3fr"] {
        grid-template-columns: 1fr !important;
    }

    /* 3-column */
    [style*="grid-template-columns: 1fr 1fr 1fr"],
    [style*="grid-template-columns: repeat(3"] {
        grid-template-columns: 1fr !important;
    }

    /* 4+ column */
    [style*="grid-template-columns: repeat(4"],
    [style*="grid-template-columns: repeat(5"],
    [style*="grid-template-columns: repeat(6"],
    [style*="grid-template-columns: 1fr 1fr 1fr 1fr"],
    [style*="grid-template-columns: 1fr 1fr auto"],
    [style*="grid-template-columns: 1fr 1fr 1fr auto"],
    [style*="grid-template-columns: 1fr 1fr 1fr 1fr auto"],
    [style*="grid-template-columns: 1fr auto 1fr"] {
        grid-template-columns: 1fr !important;
    }

    /* Color converter multi-col variants */
    [style*="grid-template-columns: 1fr 1fr 1fr auto"],
    [style*="grid-template-columns: 1fr 1fr 1fr 1fr auto"] {
        grid-template-columns: 1fr 1fr !important;
    }

    /* Inline flex rows that should stack */
    [style*="display: flex"][style*="gap"] {
        flex-wrap: wrap;
    }

    /* Responsive utility: Make inline grids single column on mobile */
    [style*="grid-template-columns: 1fr 2fr"] {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 20px 15px;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .workspace {
        padding: 20px;
    }
    
    .header-content {
        padding: 0 15px;
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .logo span:first-child {
        font-size: 1.5rem;
    }
    
    .all-tools-btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    /* On very small screens, even 2-col color grids go single */
    [style*="grid-template-columns: 1fr 1fr 1fr auto"],
    [style*="grid-template-columns: 1fr 1fr 1fr 1fr auto"] {
        grid-template-columns: 1fr !important;
    }
}

/* FAQ Section */
.faq-list {
    margin-top: 15px;
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 8px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    background: var(--dark);
    color: var(--white);
    border: none;
    padding: 16px 20px;
    text-align: left;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    transition: background 0.2s;
}

.faq-question::after {
    content: '+';
    font-size: 1.3rem;
    color: var(--primary);
    flex-shrink: 0;
    transition: transform 0.2s;
}

.faq-question.open::after {
    transform: rotate(45deg);
}

.faq-question:hover {
    background: rgba(249, 115, 22, 0.08);
}

.faq-answer {
    display: none;
    padding: 14px 20px;
    background: var(--card-bg);
    border-top: 1px solid var(--border);
}

.faq-answer p {
    color: var(--gray);
    line-height: 1.7;
    font-size: 0.92rem;
}

.faq-answer.open {
    display: block;
}

/* Last Updated */
.last-updated {
    font-size: 0.8rem;
    color: var(--gray);
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.last-updated time {
    color: var(--white);
    font-weight: 500;
}

/* Share Bar */
.share-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin: 28px 0 0;
    padding: 18px 20px;
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
}

.share-bar-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-right: 4px;
    white-space: nowrap;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.share-btn-x {
    background: #000;
    color: #fff;
    border: 1px solid #333;
}

.share-btn-x:hover {
    background: #1a1a1a;
    border-color: #555;
    transform: translateY(-2px);
}

.share-btn-linkedin {
    background: #0a66c2;
    color: #fff;
}

.share-btn-linkedin:hover {
    background: #004182;
    transform: translateY(-2px);
}

.share-btn-copy {
    background: var(--card-bg);
    color: var(--white);
    border: 1px solid var(--border);
}

.share-btn-copy:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

/* Embed Section */
.embed-section {
    margin-top: 16px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 12px;
    overflow: hidden;
}

.embed-toggle {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--gray);
    padding: 14px 20px;
    text-align: left;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}

.embed-toggle:hover {
    background: rgba(249,115,22,0.06);
    color: var(--white);
}

.embed-toggle::after {
    content: '＋';
    font-size: 1rem;
    color: var(--primary);
}

.embed-toggle.open::after {
    content: '－';
}

.embed-body {
    display: none;
    padding: 16px 20px;
    background: var(--card-bg);
    border-top: 1px solid var(--border);
}

.embed-body.open {
    display: block;
}

.embed-body p {
    font-size: 0.85rem;
    color: var(--gray);
    margin-bottom: 10px;
}

.embed-code {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    font-family: 'Courier New', monospace;
    font-size: 0.78rem;
    color: var(--white);
    resize: none;
    line-height: 1.5;
}

.embed-copy-btn {
    margin-top: 10px;
    padding: 8px 18px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.embed-copy-btn:hover {
    background: var(--primary-dark);
}

/* Related Tools */
.related-tools {
    margin-top: 30px;
    padding-top: 25px;
    border-top: 1px solid var(--border);
}

.related-tools h3 {
    color: var(--primary);
    margin-bottom: 14px;
    font-size: 1.1rem;
}

.related-tools-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.related-tool-link {
    display: inline-block;
    padding: 8px 16px;
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--white);
    text-decoration: none;
    font-size: 0.88rem;
    transition: all 0.2s;
}

.related-tool-link:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(249, 115, 22, 0.08);
}