/* ===== Variables ===== */
:root {
    --bg: #0a0a0a;
    --bg-alt: #131313;
    --surface: #181818;
    --border: #2c2c2c;
    --text: #f5f5f5;
    --text-muted: #a3a3a3;
    --primary: #1fa24a;
    --primary-hover: #178a3d;
    --accent: #f5c518;
    --red: #e63946;
    --danger: #e63946;
    --dark-green: #0b3d20;
    --radius: 14px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
    --max-width: 1140px;
    --transition: 0.25s ease;
}

[data-theme="light"] {
    --bg: #ffffff;
    --bg-alt: #f7f7f7;
    --surface: #ffffff;
    --border: #e2e2e2;
    --text: #111111;
    --text-muted: #55565a;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: background var(--transition), color var(--transition);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

::selection { background: var(--dark-green); color: #fff; }

:focus-visible {
    outline: 2px solid var(--dark-green);
    outline-offset: 2px;
}

.material-icons {
    font-size: 1.2em;
    line-height: 1;
    vertical-align: middle;
    user-select: none;
}
.icon-inline {
    font-size: 1.1em;
    margin-right: 0.35em;
    vertical-align: -0.2em;
}
.btn .icon-inline { margin-right: 0; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
}
.eyebrow .icon-inline { color: var(--primary); }

h1, h2, h3 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.15rem; }

.highlight {
    background: linear-gradient(90deg, var(--red), var(--accent), var(--primary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.6rem;
    border-radius: 999px;
    font-weight: 600;
    transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
    white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 8px 20px rgba(108, 92, 231, 0.35);
}
.btn-primary:hover { background: var(--primary-hover); }

.btn-outline {
    border: 1.5px solid var(--border);
    color: var(--text);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-small { padding: 0.55rem 1.1rem; font-size: 0.9rem; }
.btn-block { width: 100%; justify-content: center; }

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    border: 1px solid var(--border);
    font-size: 1.1rem;
    transition: border-color var(--transition), transform var(--transition);
}
.icon-btn:hover { border-color: var(--primary); transform: rotate(15deg); }

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(15, 17, 21, 0.75);
    border-bottom: 1px solid var(--border);
}
[data-theme="light"] .header { background: rgba(255, 255, 255, 0.8); }

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
}

.logo_icone {
    font-size: 1.4rem;
    font-weight: 800;
}
.logo span {
    background: linear-gradient(90deg, var(--red), var(--accent), var(--primary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-links {
    display: flex;
    gap: 2rem;
}
.nav-link {
    color: var(--text-muted);
    font-weight: 500;
    position: relative;
    transition: color var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link::after {
    content: "";
    position: absolute;
    left: 0; bottom: -6px;
    width: 0; height: 2px;
    background: var(--primary);
    transition: width var(--transition);
}
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 26px;
}
.burger span {
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero { padding: 5rem 0 6rem; }
.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
    align-items: center;
}

.hero-subtitle {
    color: var(--text-muted);
    margin: 1.2rem 0 2rem;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 2.5rem;
}
.hero-stats li { display: flex; flex-direction: column; }
.stat-number { font-size: 2rem; font-weight: 800; color: var(--primary); }
.hero-stats li:nth-child(2) .stat-number { color: var(--accent); }
.hero-stats li:nth-child(3) .stat-number { color: var(--red); }
.stat-label { color: var(--text-muted); font-size: 0.85rem; }

.code-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transform: rotate(2deg);
    transition: transform var(--transition);
}
.code-card:hover { transform: rotate(0deg); }

.code-card-header {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--border);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }
.code-card-title { margin-left: 0.6rem; color: var(--text-muted); font-size: 0.8rem; }

.code-card-body {
    padding: 1.2rem 1.4rem;
    font-family: "Cascadia Code", Consolas, monospace;
    font-size: 0.85rem;
    color: var(--accent);
    overflow-x: auto;
}

/* ===== Sections ===== */
.section-head { text-align: center; max-width: 600px; margin: 0 auto 3rem; }
.services, .projects, .contact { padding: 5rem 0; }
.services { background: var(--bg-alt); }

/* ===== Cards / Services ===== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.5rem;
}
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.8rem;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}
.card-icon { font-size: 1.8rem; margin-bottom: 0.8rem; color: var(--primary); }
.card p { color: var(--text-muted); margin-top: 0.5rem; font-size: 0.95rem; }

/* ===== Projects ===== */
.filters {
    display: flex;
    gap: 0.7rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}
.filter-btn {
    padding: 0.5rem 1.2rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition);
}
.filter-btn:hover { color: var(--text); border-color: var(--primary); }
.filter-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.6rem;
}
.project-card {
    display: block;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--primary); }
.project-card:hover .project-link { color: var(--primary); }
.project-card:hover .project-link .material-icons { transform: translateX(4px); }
.project-card.hidden { display: none; }

.project-thumb { height: 160px; }
.thumb-1 { background: linear-gradient(135deg, var(--primary), #0d3d1c); }
.thumb-2 { background: linear-gradient(135deg, var(--red), #7a1015); }
.thumb-3 { background: linear-gradient(135deg, var(--accent), #8a6c00); }
.thumb-4 { background: linear-gradient(135deg, var(--primary), var(--accent)); }
.thumb-5 { background: linear-gradient(135deg, var(--red), var(--accent)); }
.thumb-6 { background: linear-gradient(135deg, #111111, var(--primary)); }

.project-info { padding: 1.2rem 1.4rem; }
.project-info p { color: var(--text-muted); font-size: 0.9rem; margin: 0.3rem 0 0.8rem; }
.project-link {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: color var(--transition);
}
.project-link .material-icons { font-size: 1rem; transition: transform var(--transition); }
.tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    background: rgba(31, 162, 74, 0.15);
    color: var(--primary);
}
.project-card[data-category="ecommerce"] .tag {
    background: rgba(230, 57, 70, 0.15);
    color: var(--red);
}
.project-card[data-category="app"] .tag {
    background: rgba(245, 197, 24, 0.18);
    color: #b98e00;
}
[data-theme="dark"] .project-card[data-category="app"] .tag {
    color: var(--accent);
}

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}
.contact-text p { color: var(--text-muted); margin: 0.8rem 0 1.6rem; }

.contact-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}
.form-row { display: flex; flex-direction: column; gap: 0.4rem; }
.form-row label { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); }
.form-row input, .form-row textarea {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--text);
    font: inherit;
    transition: border-color var(--transition);
    resize: vertical;
}
.form-row input:focus, .form-row textarea:focus {
    outline: none;
    border-color: var(--primary);
}
.form-row.invalid input, .form-row.invalid textarea { border-color: var(--danger); }
.error-msg { color: var(--danger); font-size: 0.8rem; min-height: 1em; }
.form-success {
    color: var(--primary);
    font-weight: 600;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
}
.form-success .icon-inline { margin-right: 0; }

/* ===== Footer ===== */
.footer {
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}
.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}
.socials { display: flex; gap: 1.2rem; }
.socials a:hover { color: var(--primary); }

/* ===== Back to top ===== */
.back-to-top {
    position: fixed;
    bottom: 1.8rem;
    right: 1.8rem;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 1.2rem;
    display: grid;
    place-items: center;
    box-shadow: var(--shadow);
    transition: transform var(--transition), opacity var(--transition);
    z-index: 90;
}
.back-to-top:hover { transform: translateY(-4px); }

/* ===== Reveal animation ===== */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 860px) {
    .hero-grid, .contact-grid { grid-template-columns: 1fr; }
    .hero-visual { order: -1; }

    .nav-links {
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        background: var(--bg-alt);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1.2rem;
        transform: translateY(-130%);
        opacity: 0;
        transition: transform var(--transition), opacity var(--transition);
    }
    .nav-links.open { transform: translateY(0); opacity: 1; }

    .burger { display: flex; }
    .nav-actions .btn-small { display: none; }
}

@media (max-width: 480px) {
    .hero-stats { flex-wrap: wrap; row-gap: 1rem; }
}