:root {
    --bg: #0c0f14;
    --panel: #121621;
    --muted: #aeb6c2;
    --text: #e8eef7;
    --primary: #00e5ff;
    /* tech cyan */
    --primary2: #4f46e5;
    /* electric indigo */
    --ring: rgba(0, 229, 255, .3);
    --grad: linear-gradient(90deg, var(--primary), var(--primary2));
    --radius: 16px;
}

* {
    box-sizing: border-box
}

html,
body {
    height: 100%
}

body {
    margin: 0;
    font-family: ui-sans-serif, system-ui, Segoe UI, Roboto, Inter, Arial;
    background: radial-gradient(1200px 600px at 20% -10%, rgba(79, 70, 229, .15), transparent), radial-gradient(1000px 500px at 120% 10%, rgba(0, 229, 255, .12), transparent), var(--bg);
    color: var(--text);
}

.about {
    padding: 60px 0;
    background: rgba(255, 255, 255, .02)
}

.about__inner h2 {
    margin-bottom: 12px
}

.about__inner p {
    color: var(--muted);
    line-height: 1.6
}

.skills {
    list-style: none;
    padding: 0;
    margin: 20px 0;
    display: grid;
    gap: 6px
}

.skills li {
    background: rgba(255, 255, 255, .03);
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, .06)
}


/* layout */

.container {
    width: min(1120px, 92%);
    margin-inline: auto
}


/* nav */

.nav {
    position: sticky;
    top: 0;
    z-index: 30;
    backdrop-filter: saturate(140%) blur(6px);
    background: rgba(12, 15, 20, .5);
    border-bottom: 1px solid rgba(255, 255, 255, .06)
}

.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0
}

.logo {
    font-weight: 800;
    letter-spacing: .5px
}

.logo span {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent
}

.nav__links a {
    color: var(--text);
    text-decoration: none;
    margin-left: 18px;
    opacity: .85
}

.nav__links a:hover {
    opacity: 1
}

.author {
    display: inline-block;
    text-decoration: none;
    font-weight: 600;
    color: var(--muted);
    opacity: .85;
}

.author strong {
    color: var(--text);
    font-weight: 700;
}

.author:hover {
    opacity: 1;
}


/* BUTTONS - clean version */

.btn {
    display: inline-block;
    text-decoration: none;
    /* 🔥 toglie la sottolineatura */
    font-weight: 600;
    color: var(--text);
    padding: 10px 18px;
    border-radius: 12px;
    /* meno tondo, più professionale */
    border: 1px solid rgba(255, 255, 255, .15);
    background: transparent;
    transition: all .2s ease;
    line-height: 1.3;
}

.btn:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, .25);
}


/* variante colorata */

.btn--primary {
    background: var(--grad);
    color: #0b0f16;
    border: none;
}

.btn--primary:hover {
    opacity: .9;
}


/* variante trasparente */

.btn--ghost {
    color: var(--primary);
    border-color: rgba(0, 229, 255, .3);
}

.btn--ghost:hover {
    background: rgba(0, 229, 255, .08);
}

.btn {
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, .12)
}

.btn--primary {
    background: var(--grad);
    color: #0b0f16;
    border: none;
    box-shadow: 0 0 0 0 var(--ring)
}

.btn--primary:hover {
    transform: translateY(-1px)
}

.btn--ghost {
    background: transparent
}


/* hero */

.hero {
    position: relative;
    padding: 96px 0 72px
}

.hero__bg {
    position: absolute;
    inset: 0;
    background: url('assets/img/hero.jpg') center/cover no-repeat;
    opacity: .15;
    filter: grayscale(80%) contrast(110%);
}

.hero__content {
    position: relative;
    text-align: left
}

h1 {
    font-size: clamp(34px, 6vw, 54px);
    line-height: 1.05;
    margin: 0 0 14px
}

.lead {
    color: var(--muted);
    font-size: 18px
}

.grad {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent
}

.cta {
    margin-top: 22px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap
}

.hero__badge {
    margin-top: 22px;
    display: inline-block;
    padding: 8px 12px;
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 999px;
    background: rgba(255, 255, 255, .03)
}


/* grid cards */

.grid {
    padding: 36px 0
}

.grid__inner {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(3, 1fr)
}

.card {
    background: rgba(255, 255, 255, .03);
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: var(--radius);
    padding: 18px
}

.card h3 {
    margin: 4px 0 8px
}

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

@media (max-width:900px) {
    .grid__inner {
        grid-template-columns: 1fr
    }
}


/* features list */

.features {
    padding: 36px 0 12px;
    background: url('assets/img/lines.jpg') center/cover no-repeat;
    background-blend-mode: overlay;
}

.features h2 {
    margin: 0 0 12px
}

.features__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 10px
}

.features__list li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    background: rgba(255, 255, 255, .03);
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: 12px;
    padding: 12px
}

.features__list li span {
    display: inline-grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: rgba(79, 70, 229, .15);
    color: #cdd6ff;
    font-weight: 700
}


/* stack */

.stack {
    padding: 36px 0
}

.stack__inner {
    display: grid;
    gap: 20px;
    grid-template-columns: 1.1fr .9fr;
    align-items: center
}

.stack__copy p {
    color: var(--muted)
}

.stack__img img {
    width: 100%;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, .08)
}

.stack__img {
    position: relative;
}

.logo-over-img {
    position: absolute;
    left: 18px;
    bottom: 18px;
    width: min(260px, 42vw);
    filter: drop-shadow(0 6px 18px rgba(0, 0, 0, .35));
}

.chips {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px
}

.chip {
    padding: 8px 10px;
    border-radius: 999px;
    background: rgba(0, 229, 255, .12);
    border: 1px solid rgba(0, 229, 255, .25);
    color: #a8f6ff;
    font-size: 13px
}

@media (max-width:950px) {
    .stack__inner {
        grid-template-columns: 1fr
    }
}


/* CTA block */

.ctaBlock {
    padding: 50px 0
}

.ctaBlock__inner {
    text-align: center;
    background: linear-gradient(180deg, rgba(79, 70, 229, .18), rgba(0, 229, 255, .16));
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: 20px;
    padding: 28px
}


/* footer */

.footer {
    padding: 36px 0 50px
}

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

.footer small {
    color: var(--muted)
}