/* ============================================
   DESIGN TOKENS - Global CSS Variables
   ============================================
   Change values here to theme the entire app!
   All components use these variables.
   ============================================ */

:root {
    /* ==========================================
       COLORS - Primary Palette
       ========================================== */
    --color-primary: #0366d6;
    --color-primary-hover: #0256c7;
    --color-primary-light: #dbedff;
    --color-primary-text: #0366d6;
    --color-secondary: #6b7280;
    --color-secondary-hover: #4b5563;
    --color-secondary-light: #f3f4f6;
    /* ==========================================
       COLORS - Semantic (Status)
       ========================================== */
    --color-success: #28a745;
    --color-success-hover: #218838;
    --color-success-light: #dafbe1;
    --color-success-text: #166534;
    --color-danger: #d73a49;
    --color-danger-hover: #cb2431;
    --color-danger-light: #ffdce0;
    --color-danger-text: #9f1239;
    --color-warning: #f59e0b;
    --color-warning-hover: #d97706;
    --color-warning-light: #fef3c7;
    --color-warning-text: #92400e;
    --color-info: #0ea5e9;
    --color-info-hover: #0284c7;
    --color-info-light: #e0f2fe;
    --color-info-text: #0369a1;
    /* AI / "smart" feature accent — recurring purple across AI features.
       Fixed for now (not yet theme-builder editable). */
    --color-accent-ai: #7c3aed;
    --color-accent-ai-light: #f3e8ff;
    --color-accent-ai-text: #5b21b6;
    /* ==========================================
       COLORS - Neutral (Grays)
       ========================================== */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    /* ==========================================
       COLORS - Background & Surface
       ========================================== */
    --color-background: #fafbfc;
    --color-surface: #ffffff;
    --color-surface-hover: #f9fafb;
    --color-border: #e1e4e8;
    --color-border-light: #f0f0f0;
    /* ==========================================
       COLORS - Text
       ========================================== */
    --color-text-primary: #24292e;
    --color-text-secondary: #586069;
    --color-text-muted: #6b7280;
    --color-text-inverse: #ffffff;
    --color-text-link: #0366d6;
    --color-text-link-hover: #0256c7;
    /* ==========================================
       SPACING
       ========================================== */
    --spacing-0: 0;
    --spacing-1: 4px;
    --spacing-2: 8px;
    --spacing-3: 12px;
    --spacing-4: 16px;
    --spacing-5: 20px;
    --spacing-6: 24px;
    --spacing-8: 32px;
    --spacing-10: 40px;
    --spacing-12: 48px;
    --spacing-16: 64px;
    /* ==========================================
       TYPOGRAPHY - Font Family
       ========================================== */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    --font-family-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    /* ==========================================
       TYPOGRAPHY - Font Sizes
       ========================================== */
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-md: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    --font-size-2xl: 20px;
    --font-size-3xl: 24px;
    --font-size-4xl: 32px;
    /* ==========================================
       TYPOGRAPHY - Font Weights
       ========================================== */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    /* ==========================================
       TYPOGRAPHY - Line Heights
       ========================================== */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    /* ==========================================
       BORDERS
       ========================================== */
    --border-width: 1px;
    --border-width-2: 2px;
    --border-style: solid;
    --border-color: #e1e4e8;
    /* ==========================================
       BORDER RADIUS
       ========================================== */
    --radius-none: 0;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-2xl: 16px;
    --radius-full: 9999px;
    /* ==========================================
       SHADOWS
       ========================================== */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
    /* ==========================================
       TRANSITIONS
       ========================================== */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.2s ease;
    --transition-slow: 0.3s ease;
    /* ==========================================
       Z-INDEX LAYERS
       ========================================== */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
    --z-toast: 800;
    /* ==========================================
       COMPONENT-SPECIFIC - Buttons
       ========================================== */
    --button-padding-sm: 6px 12px;
    --button-padding-md: 8px 16px;
    --button-padding-lg: 12px 24px;
    --button-font-size-sm: var(--font-size-sm);
    --button-font-size-md: var(--font-size-md);
    --button-font-size-lg: var(--font-size-lg);
    --button-border-radius: var(--radius-md);
    /* ==========================================
       COMPONENT-SPECIFIC - Inputs
       ========================================== */
    --input-padding: 10px 12px;
    --input-border-color: var(--color-border);
    --input-border-radius: var(--radius-md);
    --input-focus-ring: 0 0 0 3px rgba(3, 102, 214, 0.2);
    --input-background: var(--color-surface);
    /* ==========================================
       COMPONENT-SPECIFIC - Cards
       ========================================== */
    --card-padding: var(--spacing-6);
    --card-border-radius: var(--radius-lg);
    --card-shadow: var(--shadow-sm);
    --card-background: var(--color-surface);
    /* ==========================================
       COMPONENT-SPECIFIC - Modals
       ========================================== */
    --modal-backdrop: rgba(0, 0, 0, 0.5);
    --modal-border-radius: var(--radius-lg);
    --modal-shadow: var(--shadow-xl);
    --modal-padding: var(--spacing-6);
    /* ==========================================
       COMPONENT-SPECIFIC - Tables
       ========================================== */
    --table-header-bg: var(--color-gray-50);
    --table-border-color: var(--color-border);
    --table-row-hover: var(--color-gray-50);
    --table-cell-padding: var(--spacing-3) var(--spacing-4);
    /* ==========================================
       COMPONENT-SPECIFIC - Badges
       ========================================== */
    --badge-padding: 4px 10px;
    --badge-font-size: var(--font-size-sm);
    --badge-border-radius: var(--radius-full);
    --badge-font-weight: var(--font-weight-medium);
    /* ==========================================
       COMPONENT-SPECIFIC - Alerts
       ========================================== */
    --alert-padding: var(--spacing-4);
    --alert-border-radius: var(--radius-md);
    --alert-border-width: 1px;
    /* ==========================================
       COMPONENT-SPECIFIC - Navigation
       ========================================== */
    --nav-height: 64px;
    --nav-background: var(--color-surface);
    --nav-border-color: var(--color-border);
    --nav-item-padding: var(--spacing-2) var(--spacing-4);
    --nav-item-hover: var(--color-gray-100);
    --nav-item-active: var(--color-primary-light);
    /* ==========================================
       ICONS
       ========================================== */
    --icon-size-sm: 16px;
    --icon-size-md: 20px;
    --icon-size-lg: 24px;
    --icon-size-xl: 32px;
    /* Icon Style */
    --icon-style: fill;
    /* Fill icon colors (normal, hover, focus, active) */
    --icon-color-fill: #0366d6;
    --icon-color-fill-hover: #0256c7;
    --icon-color-fill-focus: #0256c7;
    --icon-color-fill-active: #024ea0;
    /* Duotone icon colors */
    --icon-color-duotone: #586069;
    --icon-color-duotone-hover: #24292e;
    --icon-color-duotone-focus: #24292e;
    --icon-color-duotone-active: #0366d6;
    /* Regular icon colors */
    --icon-color-regular: #6b7280;
    --icon-color-regular-hover: #374151;
    --icon-color-regular-focus: #374151;
    --icon-color-regular-active: #0366d6;
    /* Bold icon colors */
    --icon-color-bold: #24292e;
    --icon-color-bold-hover: #111827;
    --icon-color-bold-focus: #111827;
    --icon-color-bold-active: #0366d6;
    /* Light icon colors */
    --icon-color-light: #9ca3af;
    --icon-color-light-hover: #6b7280;
    --icon-color-light-focus: #6b7280;
    --icon-color-light-active: #0366d6;
    /* Thin icon colors */
    --icon-color-thin: #d1d5db;
    --icon-color-thin-hover: #9ca3af;
    --icon-color-thin-focus: #9ca3af;
    --icon-color-thin-active: #0366d6;
}

/* ============================================
   DARK MODE (Optional - Enable when ready)
   ============================================ */
/*
@media (prefers-color-scheme: dark) {
    :root {
        --color-background: #0d1117;
        --color-surface: #161b22;
        --color-border: #30363d;
        --color-text-primary: #c9d1d9;
        --color-text-secondary: #8b949e;
    }
}
*/

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Text Colors */
.text-primary {
    color: var(--color-primary) !important;
}

.text-secondary {
    color: var(--color-text-secondary) !important;
}

.text-success {
    color: var(--color-success) !important;
}

.text-danger {
    color: var(--color-danger) !important;
}

.text-warning {
    color: var(--color-warning) !important;
}

.text-muted {
    color: var(--color-text-muted) !important;
}

/* Background Colors */
.bg-primary {
    background-color: var(--color-primary) !important;
}

.bg-success {
    background-color: var(--color-success) !important;
}

.bg-danger {
    background-color: var(--color-danger) !important;
}

.bg-warning {
    background-color: var(--color-warning) !important;
}

.bg-surface {
    background-color: var(--color-surface) !important;
}

/* Spacing Utilities */
.mt-1 {
    margin-top: var(--spacing-1) !important;
}

.mt-2 {
    margin-top: var(--spacing-2) !important;
}

.mt-3 {
    margin-top: var(--spacing-3) !important;
}

.mt-4 {
    margin-top: var(--spacing-4) !important;
}

.mb-1 {
    margin-bottom: var(--spacing-1) !important;
}

.mb-2 {
    margin-bottom: var(--spacing-2) !important;
}

.mb-3 {
    margin-bottom: var(--spacing-3) !important;
}

.mb-4 {
    margin-bottom: var(--spacing-4) !important;
}

.p-1 {
    padding: var(--spacing-1) !important;
}

.p-2 {
    padding: var(--spacing-2) !important;
}

.p-3 {
    padding: var(--spacing-3) !important;
}

.p-4 {
    padding: var(--spacing-4) !important;
}

/* Flex Utilities */
.flex {
    display: flex !important;
}

.flex-col {
    flex-direction: column !important;
}

.items-center {
    align-items: center !important;
}

.justify-center {
    justify-content: center !important;
}

.justify-between {
    justify-content: space-between !important;
}

.gap-1 {
    gap: var(--spacing-1) !important;
}

.gap-2 {
    gap: var(--spacing-2) !important;
}

.gap-3 {
    gap: var(--spacing-3) !important;
}

.gap-4 {
    gap: var(--spacing-4) !important;
}

/* Border Radius */
.rounded-sm {
    border-radius: var(--radius-sm) !important;
}

.rounded-md {
    border-radius: var(--radius-md) !important;
}

.rounded-lg {
    border-radius: var(--radius-lg) !important;
}

.rounded-full {
    border-radius: var(--radius-full) !important;
}

/* Shadows */
.shadow-sm {
    box-shadow: var(--shadow-sm) !important;
}

.shadow-md {
    box-shadow: var(--shadow-md) !important;
}

.shadow-lg {
    box-shadow: var(--shadow-lg) !important;
}


/* ============================================
   ICON THEMING - Style + State Based Colors
   ============================================
   Uses [class~="ph-style"] (exact word match) selectors
   to avoid false matches like "ph-light" hitting "ph-lightning".
   ============================================ */

/* Base transition on all icons */
i[class*="ph-"] {
    transition: color var(--transition-fast);
}

/* ─────────────────────────────────────────────
   FILL icons
   Match: <i class="ph-fill ph-house">
   ───────────────────────────────────────────── */
i[class~="ph-fill"] {
    color: var(--icon-color-fill) !important;
}

    i[class~="ph-fill"]:hover,
    a:hover > i[class~="ph-fill"],
    button:hover > i[class~="ph-fill"],
    li:hover > a > i[class~="ph-fill"] {
        color: var(--icon-color-fill-hover) !important;
    }

    i[class~="ph-fill"]:focus,
    a:focus > i[class~="ph-fill"],
    button:focus > i[class~="ph-fill"] {
        color: var(--icon-color-fill-focus) !important;
    }

.active i[class~="ph-fill"],
.active > i[class~="ph-fill"],
[aria-current="page"] i[class~="ph-fill"],
[aria-selected="true"] i[class~="ph-fill"] {
    color: var(--icon-color-fill-active) !important;
}

/* ─────────────────────────────────────────────
   DUOTONE icons
   Match: <i class="ph-duotone ph-house">
   ───────────────────────────────────────────── */
i[class~="ph-duotone"] {
    color: var(--icon-color-duotone) !important;
}

    i[class~="ph-duotone"]:hover,
    a:hover > i[class~="ph-duotone"],
    button:hover > i[class~="ph-duotone"],
    li:hover > a > i[class~="ph-duotone"] {
        color: var(--icon-color-duotone-hover) !important;
    }

    i[class~="ph-duotone"]:focus,
    a:focus > i[class~="ph-duotone"],
    button:focus > i[class~="ph-duotone"] {
        color: var(--icon-color-duotone-focus) !important;
    }

.active i[class~="ph-duotone"],
.active > i[class~="ph-duotone"],
[aria-current="page"] i[class~="ph-duotone"],
[aria-selected="true"] i[class~="ph-duotone"] {
    color: var(--icon-color-duotone-active) !important;
}

/* ─────────────────────────────────────────────
   BOLD icons
   Match: <i class="ph-bold ph-house">
   ───────────────────────────────────────────── */
i[class~="ph-bold"] {
    color: var(--icon-color-bold) !important;
}

    i[class~="ph-bold"]:hover,
    a:hover > i[class~="ph-bold"],
    button:hover > i[class~="ph-bold"],
    li:hover > a > i[class~="ph-bold"] {
        color: var(--icon-color-bold-hover) !important;
    }

    i[class~="ph-bold"]:focus,
    a:focus > i[class~="ph-bold"],
    button:focus > i[class~="ph-bold"] {
        color: var(--icon-color-bold-focus) !important;
    }

.active i[class~="ph-bold"],
.active > i[class~="ph-bold"],
[aria-current="page"] i[class~="ph-bold"],
[aria-selected="true"] i[class~="ph-bold"] {
    color: var(--icon-color-bold-active) !important;
}

/* ─────────────────────────────────────────────
   LIGHT icons
   Match: <i class="ph-light ph-house">
   ───────────────────────────────────────────── */
i[class~="ph-light"] {
    color: var(--icon-color-light) !important;
}

    i[class~="ph-light"]:hover,
    a:hover > i[class~="ph-light"],
    button:hover > i[class~="ph-light"],
    li:hover > a > i[class~="ph-light"] {
        color: var(--icon-color-light-hover) !important;
    }

    i[class~="ph-light"]:focus,
    a:focus > i[class~="ph-light"],
    button:focus > i[class~="ph-light"] {
        color: var(--icon-color-light-focus) !important;
    }

.active i[class~="ph-light"],
.active > i[class~="ph-light"],
[aria-current="page"] i[class~="ph-light"],
[aria-selected="true"] i[class~="ph-light"] {
    color: var(--icon-color-light-active) !important;
}

/* ─────────────────────────────────────────────
   THIN icons
   Match: <i class="ph-thin ph-house">
   ───────────────────────────────────────────── */
i[class~="ph-thin"] {
    color: var(--icon-color-thin) !important;
}

    i[class~="ph-thin"]:hover,
    a:hover > i[class~="ph-thin"],
    button:hover > i[class~="ph-thin"],
    li:hover > a > i[class~="ph-thin"] {
        color: var(--icon-color-thin-hover) !important;
    }

    i[class~="ph-thin"]:focus,
    a:focus > i[class~="ph-thin"],
    button:focus > i[class~="ph-thin"] {
        color: var(--icon-color-thin-focus) !important;
    }

.active i[class~="ph-thin"],
.active > i[class~="ph-thin"],
[aria-current="page"] i[class~="ph-thin"],
[aria-selected="true"] i[class~="ph-thin"] {
    color: var(--icon-color-thin-active) !important;
}

/* ─────────────────────────────────────────────
   REGULAR icons
   Match: <i class="ph-regular ph-house"> OR <i class="ph ph-house">
   Must come LAST — lowest priority of the styles.
   The :not() excludes icons already matched above.
   ───────────────────────────────────────────── */
i[class~="ph-regular"],
i.ph:not([class~="ph-fill"]):not([class~="ph-duotone"]):not([class~="ph-bold"]):not([class~="ph-light"]):not([class~="ph-thin"]) {
    color: var(--icon-color-regular) !important;
}

    i[class~="ph-regular"]:hover,
    a:hover > i[class~="ph-regular"],
    button:hover > i[class~="ph-regular"],
    li:hover > a > i[class~="ph-regular"] {
        color: var(--icon-color-regular-hover) !important;
    }

    i[class~="ph-regular"]:focus,
    a:focus > i[class~="ph-regular"],
    button:focus > i[class~="ph-regular"] {
        color: var(--icon-color-regular-focus) !important;
    }

.active i[class~="ph-regular"],
.active > i[class~="ph-regular"],
[aria-current="page"] i[class~="ph-regular"],
[aria-selected="true"] i[class~="ph-regular"] {
    color: var(--icon-color-regular-active) !important;
}

/* ─────────────────────────────────────────────
   DISABLED (all styles)
   ───────────────────────────────────────────── */
.disabled i[class*="ph-"],
[disabled] i[class*="ph-"],
[aria-disabled="true"] i[class*="ph-"] {
    opacity: 0.4 !important;
    pointer-events: none;
}

/* ─────────────────────────────────────────────
   BUTTON CONTEXT OVERRIDE
   Primary buttons: icons inherit white text.
   Secondary/other buttons: keep theme icon colors.
   Active tab-btn: white icons on blue background.
   ───────────────────────────────────────────── */
.btn-primary > i[class*="ph-"],
.btn-primary:hover > i[class*="ph-"],
.btn-primary:focus > i[class*="ph-"],
.btn-primary.active > i[class*="ph-"] {
    color: inherit !important;
}

/* Active tab-btn: white icons on blue background */
.tab-btn.active > i[class*="ph-"] {
    color: white !important;
}

/* ============================================
   THEME BUILDER - Icon Style Tabs
   ============================================ */

.icon-style-tabs {
    display: flex;
    gap: 4px;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: var(--spacing-4);
}

.icon-style-tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    transition: all var(--transition-fast);
}

    .icon-style-tab:hover {
        background: var(--color-gray-50);
        color: var(--color-text-primary);
    }

    .icon-style-tab.active {
        color: var(--color-primary);
        border-bottom-color: var(--color-primary);
        font-weight: var(--font-weight-medium);
    }

.icon-tab-preview {
    font-size: 32px;
}

.icon-tab-content {
    padding-top: var(--spacing-2);
}

.color-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-4);
}

@media (max-width: 768px) {
    .color-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .icon-style-tab {
        padding: 8px 10px;
        font-size: var(--font-size-xs);
    }
}


/* ============================================
   THEME BUILDER - Current Preset Badge
   ============================================ */

.current-preset-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--color-primary-soft, #f0f7ff);
    color: var(--color-primary, #0366d6);
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
}

    .current-preset-badge i {
        font-size: 14px;
    }

    .current-preset-badge.custom {
        background: #fef3c7;
        color: #d97706;
    }