/* style.css - Clean Silicon Valley SaaS Theme */

:root {
    --primary-color: #2563EB; /* Deep Trust Blue */
    --accent-color: #4F46E5; /* Indigo */
    --bg-main: #FFFFFF; /* Pure White */
    --bg-alt: #F8FAFC; /* Slate 50 */
    --bg-card: #FFFFFF;
    --bg-card-hover: #FFFFFF;
    --text-main: #0F172A; /* Slate 900 */
    --text-muted: #475569; /* Slate 600 */
    --border-color: #E2E8F0; /* Slate 200 */
    --radius: 12px;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

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

/* Typography */
h1, h2, h3, h4 {
    color: var(--text-main);
    line-height: 1.2;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #ffffff !important;
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background-color: #1D4ED8; /* Darker blue */
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

/* Header */
.main-header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.portfolio-img {
    width: 100%;
    height: 260px;
    object-fit: contain;
    background: #f1f5f9;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    transition: transform 0.5s ease;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.03em;
}

.logo span {
    color: var(--primary-color);
}

.main-nav {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.main-nav a {
    font-weight: 500;
    color: var(--text-muted);
    font-size: 0.95rem;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-main);
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

/* Section styling */
.section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3.5rem;
    color: var(--text-main);
}

.section-title span {
    color: var(--primary-color);
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 24px;
}

.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr)); }

/* Premium Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: #cbd5e1;
}

.card-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.25rem;
    display: inline-block;
    padding: 16px;
    background: #EFF6FF; /* Very light blue */
    border-radius: 12px;
}

/* Forms */
.form-row {
    display: flex;
    gap: 20px;
}

.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-main);
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-main);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Footer */
.main-footer {
    background: var(--bg-alt);
    color: var(--text-muted);
    padding: 80px 0 0;
    border-top: 1px solid var(--border-color);
}

.main-footer h3 {
    color: var(--text-main);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col a {
    color: var(--text-muted);
}

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

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

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-bottom {
    background: var(--bg-main);
    padding: 24px 0;
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
}

/* Responsive */
@media (max-width: 768px) {
    .hero { padding: 80px 0; }
    .section { padding: 60px 0; }
    .section-title { font-size: 2rem; margin-bottom: 2.5rem; }
    
    .grid-3, .grid-2, .footer-container { grid-template-columns: 1fr; }
    
    .form-row { flex-direction: column; gap: 0; }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--bg-main);
        flex-direction: column;
        padding: 24px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
    }
    
    .main-nav.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
}