:root {
    --primary: #4f46e5;
    --secondary: #3b82f6;
    --dark: #111827;
    --light: #f3f4f6;
    --text: #374151;
    --white: #ffffff;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Heebo', sans-serif;
    margin: 0;
    padding: 0;
    color: var(--text);
    background-color: var(--white);
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
}

.logo {
    font-weight: 900;
    font-size: 1.5rem;
    color: var(--primary);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    transition: color 0.3s;
}
.nav-links a:hover { color: var(--primary); }

/* Hero Section */
.hero {
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
    position: relative;
    padding-top: 60px;
}

.hero-content {
    max-width: 800px;
    padding: 20px;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.5rem;
    color: #6b7280;
    margin-bottom: 1.5rem;
}

.cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.btn-primary {
    background: var(--primary);
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(79, 70, 229, 0.3);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 10px 30px;
    border-radius: 50px;
    font-weight: bold;
    display: flex;
    align-items: center;
}

/* Sections */
.section {
    padding: 80px 20px;
}

.bg-light { background-color: #f9fafb; }

.container {
    max-width: 1100px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary);
    margin: 10px auto;
    border-radius: 2px;
}

/* Cards */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s;
    text-align: center;
}

.card:hover { transform: translateY(-10px); }

.card .icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

/* Portfolio Cards */
.project-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.project-image {
    height: 200px;
    width: 100%;
}

.project-info {
    padding: 20px;
    text-align: center;
}

/* Footer */
footer {
    background: var(--dark);
    color: white;
    text-align: center;
    padding: 40px 20px;
}

/* Floating Button */
.fab-container {
    position: fixed;
    bottom: 30px;
    left: 30px;
    display: flex;
    align-items: center;
    cursor: pointer;
    z-index: 999;
}

.fab-icon {
    width: 60px;
    height: 60px;
    background: var(--primary);
    border-radius: 50%;
    color: white;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
    transition: transform 0.3s;
}

.fab-text {
    background: white;
    padding: 8px 15px;
    border-radius: 20px;
    margin-left: 10px;
    font-weight: bold;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.3s;
}

.fab-container:hover .fab-icon { transform: scale(1.1); }
.fab-container:hover .fab-text { opacity: 1; transform: translateX(10px); }

/* Modal/Overlay */
.overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(5px);
}

.modal {
    background: white;
    padding: 40px;
    border-radius: 20px;
    width: 90%;
    max-width: 400px;
    position: relative;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.close-btn {
    position: absolute;
    top: 15px;
    left: 15px;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.input-group {
    position: relative;
    margin-bottom: 15px;
}

.input-group i {
    position: absolute;
    right: 15px;
    top: 15px;
    color: #9ca3af;
}

.modal input, .modal textarea {
    width: 100%;
    padding: 12px 40px 12px 15px;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    font-family: 'Heebo';
    font-size: 1rem;
    transition: border-color 0.3s;
}

.modal input:focus, .modal textarea:focus {
    border-color: var(--primary);
    outline: none;
}

.btn-submit {
    width: 100%;
    background: var(--primary);
    color: white;
    padding: 12px;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
}