/* PartnerAI Design System */

/* ============================================
   DESIGN TOKENS
   ============================================ */

:root {
    /* Colors - Light Theme */
    --color-bg-primary: #FAFBFC;
    --color-bg-secondary: #FFFFFF;
    --color-bg-tertiary: #F7F8FA;

    /* Primary Brand Color - Purple */
    --color-primary-50: #F4F1FA;
    --color-primary-100: #E9E4F7;
    --color-primary-500: #5B4B8A;
    --color-primary-600: #4A3F7A;
    --color-primary-700: #3B3361;

    /* Text Colors */
    --color-text-primary: #1A202C;
    --color-text-secondary: #4A5568;
    --color-text-tertiary: #718096;
    --color-text-muted: #A0AEC0;
    --color-text-inverse: #FFFFFF;

    /* Border Colors */
    --color-border-light: #E2E8F0;
    --color-border-default: #CBD5E0;
    --color-border-medium: #A0AEC0;

    /* Semantic Colors */
    --color-success: #48BB78;
    --color-success-bg: #C6F6D5;
    --color-warning: #ED8936;
    --color-warning-bg: #FED7AA;
    --color-error: #F56565;
    --color-error-bg: #FED7D7;
    --color-info: #4299E1;
    --color-info-bg: #BEE3F8;

    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 8px 10px -8px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Spacing Scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-card: 20px;  /* Standard card border radius */
    --radius-full: 9999px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;

    --text-xs: 0.75rem;
    /* 12px */
    --text-sm: 0.875rem;
    /* 14px */
    --text-base: 1rem;
    /* 16px */
    --text-lg: 1.125rem;
    /* 18px */
    --text-xl: 1.25rem;
    /* 20px */
    --text-2xl: 1.5rem;
    /* 24px */
    --text-3xl: 1.875rem;
    /* 30px */
    --text-4xl: 2.25rem;
    /* 36px */

    /* Layout */
    --sidebar-width: 240px;
    --sidebar-collapsed-width: 72px;
    --header-height: 64px;
    --mobile-bottom-nav-height: 64px;

    /* Z-index Scale */
    --z-base: 0;
    --z-dropdown: 1000;
    --z-sticky: 1100;
    --z-fixed: 1200;
    --z-modal-backdrop: 1300;
    --z-modal: 1400;
    --z-popover: 1500;
    --z-tooltip: 1600;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Mobile */
    --touch-target-min: 44px;
}

/* Dark Theme Overrides */
[data-theme="dark"] {
    /* Backgrounds */
    --color-bg-primary: #121212;
    --color-bg-secondary: #1E1E24;
    --color-bg-tertiary: #2C2C35;

    /* Brand Colors (Adjusted for Dark) */
    --color-primary-50: #2D263B;
    --color-primary-100: #3B3361;
    --color-primary-500: #8B78CC;
    /* Lighter for dark mode */
    --color-primary-600: #7A66C2;
    --color-primary-700: #5B4B8A;

    /* Text */
    --color-text-primary: #F7F8FA;
    --color-text-secondary: #A0AEC0;
    --color-text-tertiary: #718096;
    --color-text-muted: #666666;
    --color-text-inverse: #1A202C;
    /* Inverse is dark in dark mode btn */

    /* Borders */
    --color-border-light: #2D2D2D;
    --color-border-default: #404040;
    --color-border-medium: #555555;

    /* Shadows (Subtler) */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.5), 0 1px 2px -1px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 8px 10px -8px rgba(0, 0, 0, 0.5);
}

/* ============================================
   BASE STYLES
   ============================================ */

* {
    box-sizing: border-box;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.5;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
}

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

/* Text Utilities */
.text-xs {
    font-size: var(--text-xs);
}

.text-sm {
    font-size: var(--text-sm);
}

.text-base {
    font-size: var(--text-base);
}

.text-lg {
    font-size: var(--text-lg);
}

.text-xl {
    font-size: var(--text-xl);
}

.text-2xl {
    font-size: var(--text-2xl);
}

.text-3xl {
    font-size: var(--text-3xl);
}

.font-medium {
    font-weight: 500;
}

.font-semibold {
    font-weight: 600;
}

.font-bold {
    font-weight: 700;
}

.text-primary {
    color: var(--color-text-primary);
}

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

.text-tertiary {
    color: var(--color-text-tertiary);
}

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

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

.mt-2 {
    margin-top: var(--space-2);
}

.mt-3 {
    margin-top: var(--space-3);
}

.mt-4 {
    margin-top: var(--space-4);
}

.mt-6 {
    margin-top: var(--space-6);
}

.mb-1 {
    margin-bottom: var(--space-1);
}

.mb-2 {
    margin-bottom: var(--space-2);
}

.mb-3 {
    margin-bottom: var(--space-3);
}

.mb-4 {
    margin-bottom: var(--space-4);
}

.mb-6 {
    margin-bottom: var(--space-6);
}

.p-2 {
    padding: var(--space-2);
}

.p-3 {
    padding: var(--space-3);
}

.p-4 {
    padding: var(--space-4);
}

.p-5 {
    padding: var(--space-5);
}

.p-6 {
    padding: var(--space-6);
}

/* ============================================
   COMPONENT STYLES
   ============================================ */

/* Cards */
.card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-card);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.card-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    line-height: 1;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: inherit;
    min-height: var(--touch-target-min);
}

.btn-primary {
    background: var(--color-primary-500);
    color: var(--color-text-inverse);
}

.btn-primary:hover {
    background: var(--color-primary-600);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-default);
}

.btn-secondary:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-border-medium);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}

.btn-ghost:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

/* Input Fields */
.input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text-primary);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-family: inherit;
}

.input:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px var(--color-primary-50);
}

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

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: var(--color-primary-100);
    color: var(--color-primary-700);
}

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

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

.badge-error {
    background: var(--color-error-bg);
    color: var(--color-error);
}

/* Avatar */
.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--color-primary-100);
    color: var(--color-primary-600);
    font-weight: 600;
    font-size: var(--text-sm);
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: var(--text-xs);
}

.avatar-lg {
    width: 56px;
    height: 56px;
    font-size: var(--text-lg);
}

/* Divider */
.divider {
    height: 1px;
    background: var(--color-border-light);
    border: none;
    margin: var(--space-4) 0;
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */

.hide-mobile {
    display: block;
}

.show-mobile {
    display: none;
}

@media (max-width: 768px) {
    .hide-mobile {
        display: none;
    }

    .show-mobile {
        display: block;
    }
}
/* ============================================
   MOBILE ENHANCEMENTS
   ============================================ */

@media (max-width: 768px) {
    /* Larger touch targets */
    .input, .btn { font-size: 1rem !important; min-height: 48px; }

    /* Full-width buttons on mobile */
    .btn-full-mobile { width: 100% !important; justify-content: center !important; }

    /* Stack flex rows vertically */
    .flex-col-mobile { flex-direction: column !important; }

    /* Prevent horizontal overflow */
    .page-container { overflow-x: hidden; }
}

/* Safe-area for notched phones */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .mobile-safe-bottom { padding-bottom: env(safe-area-inset-bottom); }
}