/* ==========================================
   Global Styles - Alpha MR
   Import this file in all HTML pages
   ========================================== */

/* Font Imports */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #6c63ff;
    --primary-hover: #574fdc;
    --primary-light: #8982ff;
    --primary-dark: #4b42e0;

    --secondary-color: #2d3748;
    --text-color: #1a202c;
    --text-light: #4a5568;
    --text-lighter: #718096;

    --background-color: #ffffff;
    --background-light: #f7fafc;
    --background-gray: #edf2f7;

    --border-color: #e2e8f0;
    --border-light: #f7fafc;
    --border-subtle: rgba(17, 24, 39, 0.08);
    --border-subtle-hover: rgba(17, 24, 39, 0.2);

    --success-color: #48bb78;
    --warning-color: #ed8936;
    --error-color: #f56565;
    --info-color: #4299e1;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;

    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-md: 1rem;        /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;     /* 20px */
    --font-size-2xl: 1.5rem;     /* 24px */
    --font-size-3xl: 1.875rem;   /* 30px */
    --font-size-4xl: 2.25rem;    /* 36px */
    --font-size-5xl: 3rem;       /* 48px */
    --font-size-6xl: 3.75rem;    /* 60px */

    /* Fluid Typography (matching Alpha Health Tech) */
    --font-size-fluid-sm: clamp(0.875rem, 0.8rem + 0.4vw, 1rem);
    --font-size-fluid-md: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --font-size-fluid-lg: clamp(1.125rem, 1rem + 0.6vw, 1.5rem);
    --font-size-fluid-xl: clamp(1.5rem, 1.3rem + 1vw, 2.25rem);
    --font-size-fluid-2xl: clamp(1.9rem, 1.6rem + 0.8vw, 2.25rem);

    /* Spacing */
    --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 */
    --spacing-3xl: 4rem;      /* 64px */
    --spacing-4xl: 6rem;      /* 96px */
    --spacing-5xl: 8rem;      /* 128px */

    /* Additional Spacing Variables (matching Alpha Health Tech pattern) */
    --space-1: 0.5rem;        /* 8px */
    --space-2: 1rem;          /* 16px */
    --space-3: 1.5rem;        /* 24px */
    --space-4: 2rem;          /* 32px */
    --space-5: 3rem;          /* 48px */

    /* Border Radius */
    --radius-sm: 0.25rem;     /* 4px */
    --radius-md: 0.5rem;      /* 8px */
    --radius-lg: 0.75rem;     /* 12px */
    --radius-xl: 1rem;        /* 16px */
    --radius-2xl: 1.5rem;     /* 24px */
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Shadow Layers (for elevation hierarchy) */
    --shadow-1: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-2: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-inset: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;

    /* Container */
    --container-max-width: 1280px;
    --container-padding: 2rem;
}

/* Global Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    color: var(--text-color);
    background-color: #f5f7f9;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding: 0 var(--container-padding) var(--spacing-3xl);
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

h1 {
    font-size: clamp(2.5rem, 2rem + 2vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
}

h2 {
    font-size: clamp(2rem, 1.7rem + 1.5vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
}

h3 {
    font-size: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    font-weight: 600;
}

h4 {
    font-size: clamp(1.25rem, 1.1rem + 0.75vw, 1.75rem);
    font-weight: 600;
}

h5 {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

h6 {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
    line-height: 1.7;
    font-size: 1rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
}

/* Utility Classes */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

/* Buttons */
.button,
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
}

.button-group {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.button-primary,
.button {
    background-color: var(--primary-color);
    color: white;
    border-radius: 0.75rem;
}

.button-primary:hover,
.button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(108, 99, 255, 0.3);
    color: white;
}

.button-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 0.75rem;
}

.button-secondary:hover {
    background-color: rgba(108, 99, 255, 0.05);
    color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.button-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

/* Sections */
/* Section styling is handled in style.css */

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Lists */
ul, ol {
    margin-bottom: var(--spacing-md);
}

/* Responsive Typography */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.25rem;  /* 36px */
        --font-size-4xl: 1.875rem; /* 30px */
        --font-size-3xl: 1.5rem;   /* 24px */
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }
}