/*
Theme Name: Sathgen Therapeutics
Theme URI: https://www.sathgentherapeutics.com
Author: Sathgen Therapeutics
Author URI: https://www.sathgentherapeutics.com
Description: A professional WordPress theme for Sathgen Therapeutics, a clinical-stage biotech division. Features modern design with green-prominent branding, complete page templates, and blog/news functionality.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: sathgen
Tags: biotech, medical, professional, modern, green, responsive
*/

/* ============================================
   RESET & BASE STYLES
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Green Color Palette - Prominent */
    --green-primary: #16a34a;
    --green-600: #16a34a;
    --green-700: #15803d;
    --green-500: #22c55e;
    --green-100: #dcfce7;
    --green-50: #f0fdf4;
    
    /* Slate Grays */
    --slate-900: #0f172a;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-500: #64748b;
    --slate-400: #94a3b8;
    --slate-300: #cbd5e1;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;
    --slate-50: #f8fafc;
    
    /* Accent Colors - Green Variants */
    --blue-600: #16a34a;  /* Changed to green */
    --purple-600: #15803d;  /* Changed to darker green */
    --amber-600: #22c55e;  /* Changed to lighter green */
    --green-400: #4ade80;
    --green-300: #86efac;
    --green-800: #166534;
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    /* Container */
    --container-max-width: 1200px;
    --container-padding: 1.5rem;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--slate-900);
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--slate-900);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--green-600);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--slate-600);
}

a {
    color: var(--green-600);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--green-700);
}

/* ============================================
   LAYOUT & CONTAINER
   ============================================ */

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

.section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.125rem;
    max-width: 800px;
    margin: 0 auto;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--green-600);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--green-700);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(22, 163, 74, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--green-600);
    border: 2px solid var(--green-600);
}

.btn-secondary:hover {
    background-color: var(--green-600);
    color: #ffffff;
}

.btn-lg {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

/* ============================================
   GRID SYSTEM
   ============================================ */

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

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background: #ffffff;
    border-radius: 1rem;
    padding: var(--spacing-md);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
        --spacing-2xl: 4rem;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .btn {
        width: 100%;
        margin-bottom: var(--spacing-xs);
    }
}

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

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

.text-green {
    color: var(--green-600);
}

.bg-green {
    background-color: var(--green-600);
}

.bg-slate-50 {
    background-color: var(--slate-50);
}

.bg-slate-900 {
    background-color: var(--slate-900);
    color: #ffffff;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

/* ============================================
   SMOOTH SCROLLING
   ============================================ */

html {
    scroll-behavior: smooth;
}