/* ========================================
   ProAI.science - Website Styles
   ======================================== */

/* ========== COLOR VARIABLES ========== */
/* CHANGE THESE to update the entire site's color scheme! */
:root {
    --primary-color: #2E86AB;      /* Main blue - used for primary buttons and accents */
    --primary-dark: #1a5f7a;       /* Darker blue for hover states */
    --secondary-color: #A23B72;    /* Purple accent */
    --accent-color: #F18F01;       /* Orange accent */
    --success-color: #06A77D;      /* Green for success states */
    
    --text-dark: #1a1a1a;          /* Main text color */
    --text-medium: #4a4a4a;        /* Secondary text */
    --text-light: #6a6a6a;         /* Tertiary text */
    
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-gray: #e9ecef;
    
    --border-color: #dee2e6;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.15);
}

/* ========== RESET & BASE STYLES ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    margin-bottom: 1rem;
    font-weight: 700;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-medium);
}

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

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

/* ========== LAYOUT CONTAINERS ========== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* ========== HERO SECTION ========== */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s;
    animation-fill-mode: both;
}

.hero-description {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 2rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.4s;
    animation-fill-mode: both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s;
    animation-fill-mode: both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== ABOUT SECTION ========== */
.about {
    background: var(--bg-light);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.mission-points {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.mission-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mission-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.mission-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.mission-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.mission-card p {
    font-size: 0.95rem;
    color: var(--text-medium);
}

/* ========== TOOLS SECTION ========== */
.tools {
    background: white;
}

/* TOOL CARD - This is the main container for each tool */
.tool-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-bottom: 3rem;
    transition: transform 0.3s ease;
}

.tool-card:hover {
    transform: translateY(-5px);
}

.tool-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
    background: var(--bg-gray);
}

.tool-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tool-content {
    padding: 2.5rem;
}

.tool-title {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.tool-version {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.tool-description {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.tool-features {
    margin-bottom: 2rem;
}

.tool-features h4 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.tool-features ul {
    list-style: none;
    padding: 0;
}

.tool-features li {
    padding: 0.5rem 0;
    color: var(--text-medium);
    font-size: 0.95rem;
}

.tool-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 8px;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tool-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.tool-tech {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tech-badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    background: var(--bg-light);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ========== ABOUT ME SECTION ========== */
.about-me {
    background: var(--bg-light);
}

.about-me-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-me-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

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

.about-me-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* ========== FOOTER ========== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-section p {
    color: rgba(255,255,255,0.8);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255,255,255,0.8);
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

/* ========== RESPONSIVE DESIGN ========== */
/* Tablet and below */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .hero {
        padding: 4rem 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    section {
        padding: 3rem 0;
    }
    
    .mission-points {
        grid-template-columns: 1fr;
    }
    
    .tool-content {
        padding: 1.5rem;
    }
    
    .tool-buttons {
        flex-direction: column;
    }
    
    .tool-buttons .btn {
        width: 100%;
    }
    
    .about-me-links {
        flex-direction: column;
    }
    
    .about-me-links .btn {
        width: 100%;
    }
}

/* Mobile */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .tool-stats {
        grid-template-columns: 1fr;
    }
}