/*
    Modern Portfolio Styles
    Author: Muhammed Fasil PV
*/

:root {
    --bg: #0b0d10;
    --panel: rgba(255, 255, 255, 0.06);
    --panel-strong: rgba(255, 255, 255, 0.12);
    --text: #e7ecf3;
    --muted: #a7b0bd;
    --brand: #7c4dff; /* purple */
    --brand-2: #00e5ff; /* cyan */
    --accent: #22c55e; /* green */

    --radius: 16px;
    --radius-sm: 12px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
    --blur: saturate(140%) blur(8px);

    --container: 1200px;
    --space-1: 6px;
    --space-2: 10px;
    --space-3: 16px;
    --space-4: 24px;
    --space-5: 36px;
    --space-6: 56px;
}

/* Base */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text);
    background: radial-gradient(1200px 800px at 80% -10%, #111827 10%, #0b0d10 60%), #0b0d10;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.muted { color: var(--muted); }

.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding: 0 var(--space-4);
}

.row { display: flex; gap: var(--space-3); }
.between { justify-content: space-between; }
.center-y { align-items: center; }

/* Animated gradient background */
.bg.fx-gradient {
    position: fixed;
    inset: -30% -10% -10% -10%;
    background: radial-gradient(800px 500px at 10% -10%, rgba(124,77,255,.25), transparent 60%),
                            radial-gradient(700px 400px at 90% 0%, rgba(0,229,255,.25), transparent 60%),
                            radial-gradient(600px 400px at 50% 100%, rgba(34,197,94,.2), transparent 60%);
    filter: blur(40px) saturate(140%);
    pointer-events: none;
    z-index: 0;
    animation: float 20s ease-in-out infinite alternate;
}
@keyframes float { from { transform: translateY(-2%); } to { transform: translateY(2%); } }

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: linear-gradient(180deg, rgba(11,13,16,.9), rgba(11,13,16,.7) 60%, rgba(11,13,16,0));
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.brand { display: inline-flex; align-items: center; gap: .6rem; font-weight: 700; }
.brand__logo { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; background: linear-gradient(135deg, var(--brand), var(--brand-2)); box-shadow: var(--shadow); }
.brand__name { letter-spacing: .2px; }

.nav { display: flex; gap: .6rem; }
.nav__link {
    display: inline-flex; align-items: center; gap: .4rem;
    padding: .65rem .9rem;
    color: var(--muted);
    border-radius: 999px;
    transition: .25s ease;
}
.nav__link:hover { color: var(--text); background: rgba(255,255,255,.06); }

.nav-toggle { display: none; background: transparent; color: var(--text); border: 0; font-size: 1.4rem; padding: .6rem; border-radius: 10px; }

/* Hero */
.hero { position: relative; z-index: 1; padding: calc(var(--space-6) + 24px) var(--space-4) var(--space-6); }
.eyebrow { color: var(--brand-2); font-weight: 600; letter-spacing: .2px; display: inline-flex; align-items: center; gap: .5rem; opacity: .9; }
.hero__title { font-size: clamp(1.8rem, 3vw + 1rem, 3rem); line-height: 1.2; margin: .6rem 0 1rem; background: linear-gradient(90deg, #fff, #d7e1ff 60%, #9ad7ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__subtitle { color: var(--muted); max-width: 820px; }
.cta { display: flex; gap: .8rem; flex-wrap: wrap; margin: 1.2rem 0 0; }
.social { display: flex; gap: .6rem; margin-top: 1.2rem; }

.btn {
    display: inline-flex; align-items: center; gap: .5rem;
    padding: .8rem 1.1rem; border-radius: 12px; font-weight: 600; letter-spacing: .2px;
    border: 1px solid transparent; transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #0b0d10; box-shadow: 0 8px 24px rgba(124,77,255,.35); }
.btn--primary:hover { filter: saturate(110%); box-shadow: 0 10px 30px rgba(124,77,255,.45); }
.btn--ghost { background: rgba(255,255,255,.06); color: var(--text); border-color: rgba(255,255,255,.12); }
.btn--ghost:hover { background: rgba(255,255,255,.12); }

.icon-btn { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; background: rgba(255,255,255,.06); color: var(--text); border: 1px solid rgba(255,255,255,.1); transition: .25s ease; }
.icon-btn:hover { transform: translateY(-2px); background: rgba(255,255,255,.12); }

/* Sections */
.section { position: relative; z-index: 1; padding: var(--space-6) 0; }
.section__header { display: flex; align-items: end; gap: .8rem; justify-content: space-between; margin-bottom: 1.2rem; }
.section__title { font-size: clamp(1.3rem, 1.1vw + 1rem, 2rem); display: flex; align-items: center; gap: .6rem; }
.section__subtitle { color: var(--muted); }
.lead { color: var(--text); opacity: .9; max-width: 900px; }

.chips { list-style: none; padding: 0; margin: 1rem 0 0; display: flex; flex-wrap: wrap; gap: .6rem; }
.chip { padding: .45rem .7rem; border-radius: 999px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); color: var(--muted); font-weight: 500; }

/* Skills */
.skills { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .9rem; }
.skill { background: var(--panel); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius); padding: 1rem; display: flex; gap: .8rem; align-items: center; box-shadow: var(--shadow); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur); transition: .25s ease; }
.skill i { font-size: 1.5rem; color: var(--brand-2); }
.skill:hover { transform: translateY(-3px); background: var(--panel-strong); }

/* Cards / Projects */
.grid { display: grid; gap: 1rem; }
.cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card { position: relative; background: var(--panel); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius); padding: 1.1rem; box-shadow: var(--shadow); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur); overflow: hidden; transition: .3s ease; }
.card:hover { transform: translateY(-4px); background: var(--panel-strong); }
.card__icon { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 12px; background: rgba(124,77,255,.15); color: var(--brand-2); margin-bottom: .6rem; }
.card__title { margin: .2rem 0 .4rem; font-size: 1.05rem; }
.card__text { color: var(--muted); }

.tags { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: .8rem; }
.tag { font-size: .8rem; padding: .25rem .55rem; color: #0b0d10; background: linear-gradient(135deg, var(--brand-2), var(--brand)); border-radius: 999px; }

/* Timeline */
.timeline { list-style: none; padding: 0; margin: 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 0; bottom: 0; width: 2px; background: rgba(255,255,255,.12); }
.timeline__item { position: relative; padding-left: 36px; margin: 1.1rem 0; }
.timeline__dot { position: absolute; left: 0; top: .35rem; width: 18px; height: 18px; border-radius: 50%; background: linear-gradient(135deg, var(--brand), var(--brand-2)); box-shadow: 0 0 0 4px rgba(124,77,255,.15); }
.timeline__content { background: var(--panel); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius-sm); padding: .9rem 1rem; -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur); }
.timeline h3 { margin: 0 0 .2rem; font-size: 1.02rem; }
.timeline ul { margin: .4rem 0 0; padding-left: 1rem; }
.timeline li { color: var(--muted); margin: .2rem 0; }

/* Contact */
.contact { display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: center; background: var(--panel); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius); padding: 1rem; -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur); box-shadow: var(--shadow); }
.contact__info a { color: var(--text); }
.contact__info a:hover { color: #fff; }

/* Footer */
.site-footer { border-top: 1px solid rgba(255,255,255,.06); padding: 1rem 0; background: rgba(0,0,0,.2); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); position: relative; z-index: 1; }

/* Reveal animations */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 960px) {
    .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .skills { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
    .brand__name { display: none; }
    .nav-toggle { display: inline-grid; }
    .nav { position: absolute; right: var(--space-4); top: 64px; background: rgba(20,22,26,.96); border: 1px solid rgba(255,255,255,.08); border-radius: 12px; padding: .5rem; box-shadow: var(--shadow); display: none; flex-direction: column; }
    .nav.open { display: flex; }
    .cards { grid-template-columns: 1fr; }
    .skills { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .contact { grid-template-columns: 1fr; }
}
@media (max-width: 440px) {
    .hero { padding-top: var(--space-6); }
}