/**
 * BFIT BaseLine Fitness - Shared Theme
 * Central source of truth for colors, typography, and base styles
 * Aligned with Tailwind config: neonGreen, teal, navyBlue, offWhite
 */

/* ============================================================================
   CSS VARIABLES - Brand Theme
   ============================================================================ */

:root {
    /* Primary Brand Colors (from Tailwind config) */
    --color-primary: #008080;           /* teal - main brand color */
    --color-primary-dark: #006666;      /* darker teal for hover */
    --color-primary-light: #00a0a0;     /* lighter teal for accents */

    /* Accent Colors */
    --color-accent: #CFDD28;            /* neonGreen - CTA buttons */
    --color-accent-dark: #b8c624;       /* darker neonGreen for hover */

    /* Text Colors */
    --color-navy: #223450;              /* navyBlue - primary text */
    --color-text: #223450;              /* alias for navy */
    --color-text-muted: #6b7280;        /* gray-500 */
    --color-text-light: #9ca3af;        /* gray-400 */

    /* Status Colors */
    --color-success: #2ecc71;
    --color-success-dark: #27ae60;
    --color-error: #dc2626;
    --color-error-bg: #fef2f2;
    --color-warning: #f39c12;
    --color-info: #3498db;

    /* Neutral/Gray Scale */
    --color-white: #ffffff;
    --color-off-white: #F9FAFB;         /* offWhite from Tailwind */
    --gray-50: #F9FAFB;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #223450;                /* navyBlue */
    --gray-900: #111827;

    /* Typography (from Tailwind config) */
    --font-header: 'Teko', sans-serif;
    --font-body: 'Rajdhani', sans-serif;

    /* Spacing Scale */
    --spacing-xs: 0.25rem;    /* 4px */
    --spacing-sm: 0.5rem;     /* 8px */
    --spacing-md: 1rem;       /* 16px */
    --spacing-lg: 1.5rem;     /* 24px */
    --spacing-xl: 2rem;       /* 32px */
    --spacing-2xl: 3rem;      /* 48px */

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

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

    /* Focus Ring (teal-based) */
    --focus-ring: 0 0 0 4px rgba(0, 128, 128, 0.2);
    --focus-ring-light: 0 0 0 4px rgba(0, 128, 128, 0.1);
}

/* ============================================================================
   BASE RESET & DEFAULTS
   ============================================================================ */

*, *::before, *::after {
    box-sizing: border-box;
}

/* ============================================================================
   TYPOGRAPHY BASE
   ============================================================================ */

body {
    font-family: var(--font-body);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-header);
    text-transform: uppercase;
    line-height: 1.2;
}

/* ============================================================================
   SHARED BUTTON STYLES
   ============================================================================ */

.btn-theme-primary {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: 14px 24px;
    font-family: var(--font-body);
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-theme-primary:hover:not(:disabled) {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-theme-accent {
    background: var(--color-accent);
    color: var(--color-navy);
    border: none;
    padding: 14px 24px;
    font-family: var(--font-header);
    font-weight: 700;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
}

.btn-theme-accent:hover:not(:disabled) {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ============================================================================
   SHARED FORM STYLES
   ============================================================================ */

.input-theme {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    font-family: var(--font-body);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: var(--color-white);
    color: var(--color-text);
    transition: all 0.2s ease;
}

.input-theme:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring-light);
}

.input-theme::placeholder {
    color: var(--gray-400);
}

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

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

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

/* Gradient backgrounds */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}