/* =================================================================
   colors.css - CENTRALIZED COLOR PALETTE & THEME SYSTEM
   Change colors easily here - applies globally to entire app
   ================================================================= */

:root {
    /* PRIMARY COLORS */
    --color-primary: #fc4c02;
    --color-primary-light: #ffcc99;
    --color-primary-dark: #d84300;
    --color-secondary: #4f46e5;
    --color-accent: #06b6d4;

    /* SPORT COLORS */
    --color-sport-run: #2e7d32;
    --color-sport-bike: #1565c0;
    --color-sport-swim: #00838f;
    --color-sport-hike: #7b2d26;
    --color-sport-trail: #5d4e37;

    /* TEXT COLORS */
    --color-text-dark: #232323;
    --color-text-medium: #595959;
    --color-text-light: #8c8c8c;
    --color-text-lighter: #ababab;

    /* BACKGROUND COLORS */
    --color-bg-page: #f8fafc;
    --color-bg-main: #f7f7f7;
    --color-bg-card: #ffffff;
    --color-bg-hover: #f3f4f6;
    --color-bg-overlay-light: rgba(255, 255, 255, 0.55);
    --color-bg-overlay-dark: rgba(0, 0, 0, 0.1);

    /* BORDER & DIVIDER COLORS */
    --color-border: #e8e8e8;
    --color-border-light: #f1f1f1;
    --color-border-dark: #d0d0d0;

    /* STATUS COLORS */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #3b82f6;

    /* GRADIENT COLORS */
    --color-gradient-orange: linear-gradient(135deg, #fff4ec 0%, #ffffff 65%);
    --color-gradient-blue: linear-gradient(135deg, #e8f4f8 0%, #ffffff 65%);
    --color-gradient-green: linear-gradient(135deg, #edf5f0 0%, #ffffff 65%);
    --color-gradient-purple: linear-gradient(135deg, #f3e8ff 0%, #ffffff 65%);
    --color-gradient-cyan: linear-gradient(135deg, #e0f2fe 0%, #ffffff 65%);

    /* SHADOWS */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 12px 50px rgba(0, 0, 0, 0.15);

    /* SPACING */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* BORDER RADIUS */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-full: 999px;

    /* TYPOGRAPHY */
    --font-family-base: 'Segoe UI', 'Roboto', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* TRANSITIONS */
    --transition-fast: 0.15s;
    --transition-normal: 0.3s;
    --transition-slow: 0.5s;

    /* Z-INDEX LAYERS */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
}

/* DARK MODE SUPPORT (uncomment when ready to auto-detect OS preference)
@media (prefers-color-scheme: dark) {
    :root {
        --color-text-dark: #f1f5f9;
        --color-text-medium: #cbd5e1;
        --color-text-light: #94a3b8;

        --color-bg-page: #0f172a;
        --color-bg-main: #1e293b;
        --color-bg-card: #1e293b;
        --color-bg-hover: #334155;

        --color-border: #334155;
        --color-border-light: #475569;
        --color-border-dark: #1e293b;

        --color-bg-overlay-light: rgba(15, 23, 42, 0.55);
        --color-bg-overlay-dark: rgba(255, 255, 255, 0.1);

        --color-gradient-orange: linear-gradient(135deg, #6b4423 0%, #1e293b 65%);
        --color-gradient-blue: linear-gradient(135deg, #1e3a5f 0%, #1e293b 65%);
        --color-gradient-green: linear-gradient(135deg, #1b3a2e 0%, #1e293b 65%);
    }
}
*/

/* SPORT-SPECIFIC BACKGROUND GRADIENTS */
.bg-gradient-run {
    background: linear-gradient(135deg, #edf5f0 0%, #ffffff 65%);
}

.bg-gradient-bike {
    background: linear-gradient(135deg, #e0f2fe 0%, #ffffff 65%);
}

.bg-gradient-swim {
    background: linear-gradient(135deg, #e0f7fa 0%, #ffffff 65%);
}

.bg-gradient-hike {
    background: linear-gradient(135deg, #f5e6d3 0%, #ffffff 65%);
}

/* UTILITY CLASSES FOR QUICK COLOR CHANGES */
.text-primary {
    color: var(--color-primary);
}

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

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

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

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

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

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

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

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

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

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

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

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

.border-default {
    border-color: var(--color-border);
}

.shadow-sm {
    box-shadow: var(--shadow-sm);
}

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

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

.shadow-xl {
    box-shadow: var(--shadow-xl);
}

/* ROUNDED CORNERS */
.rounded-sm {
    border-radius: var(--radius-sm);
}

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

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

.rounded-xl {
    border-radius: var(--radius-xl);
}

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

/* SPACING HELPERS */
.gap-xs {
    gap: var(--spacing-xs);
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.gap-lg {
    gap: var(--spacing-lg);
}

.p-xs {
    padding: var(--spacing-xs);
}

.p-sm {
    padding: var(--spacing-sm);
}

.p-md {
    padding: var(--spacing-md);
}

.p-lg {
    padding: var(--spacing-lg);
}

.p-xl {
    padding: var(--spacing-xl);
}

.m-xs {
    margin: var(--spacing-xs);
}

.m-sm {
    margin: var(--spacing-sm);
}

.m-md {
    margin: var(--spacing-md);
}

.m-lg {
    margin: var(--spacing-lg);
}

.m-xl {
    margin: var(--spacing-xl);
}