html {
    scroll-behavior: smooth;
}

a {
    text-decoration: none;
    color: var(--text-link);
    cursor: pointer;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    transition: background 0.3s ease, color 0.3s ease;
}

:root {
    --color-primary: #5B6CFF;
    --color-secondary: #00C2A8;
    --color-accent: #FF6B6B;
    --bg: #F7FAFC;
    --text: #0F1724;
    --text-link: #6969d7;
    --muted: #5A6B7A;
    --card: #fff;
    --gray-bg: #EEEEEE;
}

:root[data-theme="dark"] {
    --bg: #0B1220;
    --text: #E6EEF6;
    --text-link: #9e9eff;
    --muted: #A9B6C6;
    --card: #0F1724;
    --gray-bg: #090e18;
}

.tag {
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    border: 1px solid;
    font-family: monospace;
}

.tag-html  { color: #e34c26; border-color: #e34c26; }
.tag-css   { color: #4fa6e0; border-color: #4fa6e0; }
.tag-js    { color: #f0db4f; border-color: #f0db4f; }

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

.container label {
    color: var(--text);
}

.site-header {
    position: sticky;
    top: 0;
    backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.6);
    padding: 1rem;
    z-index: 999;
    transition: background 0.3s ease;
}

:root[data-theme="dark"] .site-header {
    background: rgba(15, 23, 36, 0.85);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.spacer {
    flex: 1;
}

.main-nav ul {
    display: flex;
    flex: 1;
    gap: 1rem;
    list-style: none;
    padding: 0;
    margin: 0;
    flex-wrap: wrap;
}

.main-nav a {
    text-decoration: none;
    color: var(--muted);
    font-weight: 600;
    transition: color 0.3s ease;
}

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

.btn {
    padding: 0.6rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    font-weight: 700;
    display: inline-block;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn.primary {
    border: 1px solid var(--muted);
    color: var(--text);
}

.btn.primary:hover {
    transform: scale(1.05);
}

.btn.ghost {
    border: 1px solid var(--muted);
    color: var(--muted);
    background: transparent;
}

.btn.ghost:hover {
    transform: scale(1.05);
}

.hero {
    padding: 6rem 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
    align-items: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin: 0;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.15);
}

.hero-card {
    background: var(--card);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

#sobre p {
    white-space: pre-line;
}

.avatar-placeholder {
    width: 200px;
    height: 200px;
    background: var(--muted);
    margin: 0 auto;
    border-radius: 50%;
    overflow: hidden;
}

.avatar-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.controls {
    display: flex;
    flex: 1;
    gap: 8px;
    justify-content: flex-end;
}

.controls button {
    background-color: #090e18;
    border: 1px solid var(--border);
    color: white;
    border-radius: 6px;
}

.controls button:hover {
    color: white;
    background: #21304f;
}

.section {
    padding: 4rem 0;
}

.section.alt {
    background: rgba(0, 0, 0, 0.03);
}

.gray-bg {
    background: var(--gray-bg);
}

.section h2 {
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.15);
    font-size: 2rem;
}

.projects-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    margin-top: 1rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    color: var(--text);
    background: var(--card);
    padding: 1rem;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-header {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.project-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: auto;
}

.project-card p {
    color: var(--muted);
}

.project-card h3 {
    color: var(--text);
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.site-footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--muted);
}

.section,
.project-card,
.hero-text,
.hero-card {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.lead::after {
    content: '|';
    animation: blink 1s step-start infinite;
    margin-left: 4px;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

@media (max-width: 768px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-card {
        margin-top: 2rem;
    }

    .main-nav ul {
        justify-content: center;
    }
}