/* Tool Hero Section - Required */
.tool-hero {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.hero-text {
    flex: 1;
    min-width: 260px;
}

.hero-text h1 {
    font-size: 40px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 760px;
    margin-bottom: 1rem;
    margin-top: 0;
}

@media (max-width: 767px) {
    .hero-text h1 {
        font-size: clamp(1.75rem, 5vw, 2.5rem);
    }

    .hero-subtitle {
        font-size: clamp(1rem, 3vw, 1.125rem);
    }
}

/* Database Schema Generator - mobile-first */
.db-schema {
    --db-bg: #fff;
    --db-border: #e5e7eb;
    --db-border-focus: #3b82f6;
    --db-text: #111827;
    --db-text-muted: #6b7280;
    --db-radius: 12px;
    --db-radius-sm: 8px;
    --db-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    --db-shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.08);
    --db-primary: #2563eb;
    --db-primary-hover: #1d4ed8;
    --db-success: #059669;
    --db-success-hover: #047857;
    --db-danger: #dc2626;
    --db-danger-hover: #b91c1c;
    margin-bottom: 2rem;
}

.db-schema-workspace {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.db-schema-builder,
.db-schema-output-panel {
    display: flex;
    flex-direction: column;
    background: var(--db-bg);
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius);
    box-shadow: var(--db-shadow);
    padding: 1.25rem;
}

.db-schema-panel-head {
    margin-bottom: 1.25rem;
}

.db-schema-panel-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--db-text);
    margin: 0;
    letter-spacing: 0.02em;
}

.db-schema-field {
    margin-bottom: 1rem;
}

.db-schema-field:last-child {
    margin-bottom: 0;
}

.db-schema-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--db-text);
    margin-bottom: 0.375rem;
}

.db-schema-input,
.db-schema-select {
    width: 100%;
    padding: 0.625rem 0.75rem;
    font-size: 0.9375rem;
    line-height: 1.4;
    color: var(--db-text);
    background: var(--db-bg);
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius-sm);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.db-schema-input:focus,
.db-schema-select:focus {
    outline: none;
    border-color: var(--db-border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.db-schema-input::placeholder {
    color: var(--db-text-muted);
}

.db-schema-block {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--db-border);
}

.db-schema-block:first-of-type {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.db-schema-block-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.db-schema-block-head .db-schema-block-title {
    margin: 0;
}

.db-schema-block-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--db-text);
    margin-bottom: 0.75rem;
}

.db-schema-columns {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.db-schema-column-row {
    padding: 0.875rem;
    background: #f9fafb;
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius-sm);
}

.db-schema-column-row .db-schema-column-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.db-schema-column-row .db-schema-column-opts {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.8125rem;
}

.db-schema-column-row .db-schema-option {
    margin: 0;
    font-weight: 400;
}

.db-schema-column-row .db-schema-input,
.db-schema-column-row .db-schema-select {
    padding: 0.5rem 0.625rem;
    font-size: 0.875rem;
}

.db-schema-column-remove {
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: #fff;
    background: var(--db-danger);
    border: none;
    border-radius: var(--db-radius-sm);
    cursor: pointer;
    transition: background 0.15s ease;
}

.db-schema-column-remove:hover {
    background: var(--db-danger-hover);
}

@media (min-width: 480px) {
    .db-schema-column-row .db-schema-column-grid {
        grid-template-columns: 1fr 1fr auto;
    }
}

@media (min-width: 640px) {
    .db-schema-column-row .db-schema-column-grid {
        grid-template-columns: 1.5fr 1fr 1fr auto;
    }
}

.db-schema-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.db-schema-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--db-text);
    cursor: pointer;
}

.db-schema-option input {
    width: 1rem;
    height: 1rem;
    accent-color: var(--db-primary);
}

.db-schema-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--db-border);
}

.db-schema-btn {
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.4;
    border-radius: var(--db-radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.db-schema-btn-primary {
    color: #fff;
    background: var(--db-primary);
    border-color: var(--db-primary);
}

.db-schema-btn-primary:hover {
    background: var(--db-primary-hover);
    border-color: var(--db-primary-hover);
}

.db-schema-btn-secondary {
    color: var(--db-text);
    background: var(--db-bg);
    border-color: var(--db-border);
}

.db-schema-btn-secondary:hover {
    background: #f3f4f6;
    border-color: #d1d5db;
}

.db-schema-btn-ghost {
    color: var(--db-text-muted);
    background: transparent;
}

.db-schema-btn-ghost:hover {
    color: var(--db-text);
    background: #f3f4f6;
}

.db-schema-btn-add {
    color: var(--db-success);
    background: transparent;
    border-color: var(--db-success);
}

.db-schema-btn-add:hover {
    color: #fff;
    background: var(--db-success);
}

.db-schema-btn-success {
    color: #fff;
    background: var(--db-success);
    border-color: var(--db-success);
}

.db-schema-btn-success:hover {
    background: var(--db-success-hover);
    border-color: var(--db-success-hover);
}

.db-schema-btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.db-schema-output-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.db-schema-output-actions {
    display: flex;
    gap: 0.5rem;
}

.db-schema-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 0.75rem;
    border-bottom: 1px solid var(--db-border);
}

.db-schema-tab {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--db-text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    cursor: pointer;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.db-schema-tab:hover {
    color: var(--db-text);
}

.db-schema-tab.is-active {
    color: var(--db-primary);
    border-bottom-color: var(--db-primary);
}

.db-schema-output-wrap {
    flex: 1 1 auto;
    min-height: 0;
    margin-bottom: 0.75rem;
}

.db-schema-output-area {
    width: 100%;
    min-height: 18rem;
    padding: 0.875rem 1rem;
    font-size: 0.8125rem;
    line-height: 1.5;
    color: var(--db-text);
    background: #f9fafb;
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius-sm);
    resize: vertical;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.db-schema-output-area:focus {
    outline: none;
    border-color: var(--db-border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.db-schema-output-area::placeholder {
    color: var(--db-text-muted);
}

.db-schema-output-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem 1.5rem;
    flex-shrink: 0;
    margin-top: 0.25rem;
    padding: 0.75rem 0 0;
    border-top: 1px solid var(--db-border);
    font-size: 0.8125rem;
    line-height: 1.4;
    color: var(--db-text-muted);
}

.db-schema-output-meta span {
    display: inline-block;
}

.db-schema-output-meta strong {
    color: var(--db-text);
    font-weight: 600;
}

.db-schema-templates {
    margin-top: 2rem;
}

.db-schema-templates-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--db-text);
    margin: 0 0 1rem 0;
}

.db-schema-templates-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}

@media (min-width: 480px) {
    .db-schema-templates-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .db-schema-templates-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.db-schema-template {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    padding: 1rem;
    text-align: left;
    background: var(--db-bg);
    border: 1px solid var(--db-border);
    border-radius: var(--db-radius-sm);
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.db-schema-template:hover {
    border-color: var(--db-primary);
    background: #eff6ff;
    box-shadow: var(--db-shadow);
}

.db-schema-template-name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--db-primary);
}

.db-schema-template-desc {
    font-size: 0.8125rem;
    color: var(--db-text-muted);
}

.db-schema-tips {
    margin-top: 2rem;
    padding: 1.25rem;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: var(--db-radius);
}

.db-schema-tips-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: #1e40af;
    margin: 0 0 0.75rem 0;
}

.db-schema-tips-list {
    margin: 0;
    padding-left: 1.25rem;
    font-size: 0.875rem;
    line-height: 1.6;
    color: #1e3a8a;
}

.db-schema-tips-list li {
    margin-bottom: 0.375rem;
}

.db-schema-tips-list li:last-child {
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .db-schema-workspace {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
        align-items: start;
    }

    .db-schema-builder,
    .db-schema-output-panel {
        padding: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .db-schema-workspace {
        gap: 2rem;
    }

    .db-schema-builder,
    .db-schema-output-panel {
        padding: 1.75rem;
        box-shadow: var(--db-shadow-lg);
    }
}