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

:root {
    --primary: #6c5ce7;
    --primary-light: #a29bfe;
    --secondary: #fd79a8;
    --accent: #00cec9;
    --accent-warm: #fdcb6e;
    --bg: #fefefe;
    --bg-soft: #f8f7ff;
    --bg-card: #ffffff;
    --text: #2d3436;
    --text-light: #636e72;
    --shadow-sm: 0 2px 8px rgba(108, 92, 231, 0.1);
    --shadow-md: 0 4px 20px rgba(108, 92, 231, 0.15);
    --shadow-lg: 0 8px 40px rgba(108, 92, 231, 0.2);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --nav-height: 64px;
    --font-body: 'Nunito', sans-serif;
    --font-fun: 'Patrick Hand', cursive;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font-body);
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== Navbar ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    z-index: 1000;
    border-bottom: 2px solid var(--bg-soft);
    transition: box-shadow 0.3s;
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-fun);
    font-size: 1.5rem;
    color: var(--primary);
    text-decoration: none;
}

.brand-icon {
    font-size: 1.6rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all 0.25s;
}

.nav-link:hover {
    color: var(--primary);
    background: var(--bg-soft);
}

.nav-link.active {
    color: var(--primary);
    background: var(--bg-soft);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2.5px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ========== Hero ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: calc(var(--nav-height) + 40px) 32px 60px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-soft) 0%, #fff 50%, #fef0f5 100%);
}

.hero-content {
    text-align: center;
    z-index: 2;
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
}

.wave {
    display: inline-block;
    animation: wave 2s ease-in-out infinite;
    transform-origin: 70% 70%;
}

.highlight {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: var(--text-light);
    margin-bottom: 32px;
    font-weight: 400;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 28px;
    border-radius: var(--radius-xl);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s;
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(108, 92, 231, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary-light);
}

.btn-secondary:hover {
    background: var(--bg-soft);
    transform: translateY(-2px);
}

/* Decorative shapes */
.hero-decor {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: var(--primary);
    top: -60px;
    right: -80px;
    animation: float 8s ease-in-out infinite;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: var(--secondary);
    bottom: 10%;
    left: -60px;
    animation: float 6s ease-in-out infinite reverse;
}

.shape-3 {
    width: 120px;
    height: 120px;
    background: var(--accent);
    top: 30%;
    right: 10%;
    border-radius: var(--radius-lg);
    transform: rotate(45deg);
    animation: float 7s ease-in-out infinite 1s;
}

.shape-4 {
    width: 80px;
    height: 80px;
    background: var(--accent-warm);
    bottom: 20%;
    right: 25%;
    animation: float 5s ease-in-out infinite 0.5s;
}

.shape-5 {
    width: 150px;
    height: 150px;
    background: var(--primary-light);
    top: 20%;
    left: 5%;
    border-radius: var(--radius-lg);
    transform: rotate(20deg);
    animation: float 9s ease-in-out infinite 2s;
}

/* ========== About ========== */
.about {
    padding: 100px 0;
    background: var(--bg-soft);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 12px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 2px;
    margin: 12px auto 0;
}

.section-desc {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.about-content {
    display: flex;
    justify-content: center;
}

.about-card {
    display: flex;
    gap: 40px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
    max-width: 700px;
    width: 100%;
    align-items: center;
    transition: transform 0.3s;
}

.about-card:hover {
    transform: translateY(-4px);
}

.about-avatar {
    flex-shrink: 0;
}

.avatar-placeholder {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.8rem;
    box-shadow: var(--shadow-sm);
}

.about-info h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--primary);
}

.about-desc {
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.7;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tag {
    padding: 4px 14px;
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    font-weight: 600;
}

.tag-html { background: #ffeaa7; color: #d35400; }
.tag-css { background: #dfe6e9; color: #0984e3; }
.tag-js { background: #fff3bf; color: #e17055; }
.tag-creative { background: #e8daef; color: #6c3483; }
.tag-design { background: #d5f5e3; color: #27ae60; }

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-soft);
    color: var(--text-light);
    transition: all 0.3s;
    text-decoration: none;
}

.social-link:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

/* ========== Footer ========== */
.footer {
    text-align: center;
    padding: 32px;
    background: var(--bg-soft);
    color: var(--text-light);
    font-size: 0.9rem;
}

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

@keyframes wave {
    0%, 100% { transform: rotate(0deg); }
    15% { transform: rotate(14deg); }
    30% { transform: rotate(-8deg); }
    45% { transform: rotate(14deg); }
    60% { transform: rotate(-4deg); }
    75% { transform: rotate(10deg); }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(var(--r, 0deg)); }
    50% { transform: translateY(-20px) rotate(var(--r, 0deg)); }
}

/* ========== Scroll reveal ========== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 16px;
        gap: 4px;
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s;
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .about-card {
        flex-direction: column;
        text-align: center;
        padding: 32px 24px;
        gap: 24px;
    }

    .skill-tags {
        justify-content: center;
    }

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}