/* =========================
   1. GLOBAL STYLES
========================= */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Poppins", sans-serif;
    background: #f8fafc;
    color: #172033;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

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

/* =========================
   2. HEADER
========================= */

.header {
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar {
    min-height: 75px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 800;
}

.logo span {
    color: #6366f1;
}

.navbar nav {
    display: flex;
    gap: 30px;
}

.navbar nav a {
    color: #64748b;
    font-size: 14px;
    font-weight: 500;
    transition: 0.3s;
}

.navbar nav a:hover {
    color: #6366f1;
}

.level-badge {
    background: #eef2ff;
    color: #4f46e5;
    padding: 8px 15px;
    border-radius: 30px;
    font-size: 12px;
    font-weight: 600;
}

/* =========================
   3. HERO SECTION
========================= */

.hero {
    padding: 110px 0;
    background: linear-gradient(
        135deg,
        #eef2ff,
        #f8fafc,
        #e0e7ff
    );
    text-align: center;
}

.hero-content {
    max-width: 800px;
}

.hero-label {
    display: inline-block;
    color: #4f46e5;
    background: #ffffff;
    padding: 8px 18px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 25px;
}

.hero h1 {
    font-size: clamp(36px, 6vw, 65px);
    line-height: 1.2;
    font-weight: 800;
    margin-bottom: 25px;
}

.hero h1 span {
    display: block;
    color: #6366f1;
}

.hero p {
    max-width: 650px;
    margin: 0 auto 30px;
    color: #64748b;
    font-size: 16px;
}

.primary-btn {
    display: inline-block;
    background: #6366f1;
    color: white;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    transition: 0.3s;
}

.primary-btn:hover {
    background: #4f46e5;
    transform: translateY(-3px);
}

/* =========================
   4. PROJECTS SECTION
========================= */

.projects-section {
    padding: 90px 0;
}

.section-heading {
    text-align: center;
    margin-bottom: 50px;
}

.section-heading span,
.about-content span {
    color: #6366f1;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
}

.section-heading h2,
.about-content h2 {
    font-size: 35px;
    margin: 10px 0;
}

.section-heading p {
    color: #64748b;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

/* =========================
   5. PROJECT CARD
========================= */

.project-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    padding: 25px;
    transition: 0.3s;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-7px);
    border-color: #a5b4fc;
    box-shadow: 0 15px 35px rgba(15, 23, 42, 0.08);
}

.project-icon {
    width: 55px;
    height: 55px;
    display: grid;
    place-items: center;
    background: #eef2ff;
    border-radius: 12px;
    font-size: 26px;
    margin-bottom: 20px;
}

.project-number {
    color: #6366f1;
    font-size: 12px;
    font-weight: 700;
}

.project-card h3 {
    font-size: 19px;
    margin: 8px 0;
}

.project-card p {
    color: #64748b;
    font-size: 13px;
    margin-bottom: 22px;
    flex-grow: 1;
}

.project-link {
    display: inline-block;
    color: #4f46e5;
    font-weight: 600;
    font-size: 13px;
}

.project-link:hover {
    color: #312e81;
}

/* =========================
   6. ABOUT SECTION
========================= */

.about-section {
    padding: 80px 0;
    background: #eef2ff;
    text-align: center;
}

.about-content {
    max-width: 750px;
}

.about-content p {
    color: #64748b;
    margin-top: 15px;
}

/* =========================
   7. FOOTER
========================= */

.footer {
    background: #111827;
    color: #cbd5e1;
    text-align: center;
    padding: 25px 0;
    font-size: 13px;
}

/* =========================
   8. RESPONSIVE DESIGN
========================= */

@media (max-width: 900px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .navbar {
        flex-wrap: wrap;
        gap: 15px;
        padding: 15px 0;
    }

    .navbar nav {
        gap: 15px;
    }

    .level-badge {
        display: none;
    }

    .hero {
        padding: 75px 0;
    }

    .hero p {
        font-size: 14px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .section-heading h2,
    .about-content h2 {
        font-size: 28px;
    }
}