/* ==========================================================
   Standart responsive o'lchamlar (mobile-first, min-width):
   320px   — kichik telefon (asosiy stil + max-width: 359px tuzatish)
   480px   — telefon (landscape)
   576px   — katta telefon / sm
   768px   — planshet / md
   992px   — noutbuk / lg
   1200px  — desktop / xl
   1400px  — katta ekran / xxl
   ========================================================== */

:root {
    --bg: #0b0d11;
    --surface: #12151b;
    --surface-hover: #181c24;
    --border: #252a33;
    --text: #eef0f3;
    --muted: #8e95a1;
    --accent: #3ddc97;
    --accent-ink: #06130d;

    --radius-lg: 20px;
    --radius-md: 12px;
    --gap: 14px;
    --pad: 16px;
    --container: 1100px;
    --header-h: 64px;

    --font: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.6;
}

main {
    flex: 1;
}

h1,
h2,
p,
ul,
dl,
dd,
address {
    margin: 0;
    padding: 0;
}

ul {
    list-style: none;
}

address {
    font-style: normal;
}

a {
    color: inherit;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.container {
    width: min(100% - 2 * var(--pad), var(--container));
    margin-inline: auto;
}

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(11, 13, 17, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-h);
}

.logo {
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    text-decoration: none;
}

.logo__dot {
    color: var(--accent);
}

.nav__list {
    display: flex;
    gap: 4px;
}

.nav__link {
    display: block;
    padding: 8px 12px;
    border-radius: var(--radius-md);
    color: var(--muted);
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s, background-color 0.2s;
}

.nav__link:hover {
    color: var(--text);
    background: var(--surface);
}

/* ---------- Sections ---------- */
.section {
    padding-block: 20px;
    scroll-margin-top: var(--header-h);
}

.section__title {
    margin-bottom: var(--gap);
    font-size: 1.375rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

/* ---------- Card ---------- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
}

/* ---------- Hero ---------- */
.hero {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 28px 20px;
}

.hero__role {
    color: var(--accent);
    font-size: 0.9375rem;
    font-weight: 600;
}

.hero__title {
    font-size: clamp(2rem, 9vw, 4rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
}

.hero__lead {
    max-width: 34rem;
    color: var(--muted);
    font-size: 1.0625rem;
}

.button {
    display: inline-block;
    margin-top: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    background: var(--accent);
    color: var(--accent-ink);
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.15s, filter 0.2s;
}

.button:hover {
    filter: brightness(1.08);
}

.button:active {
    transform: scale(0.97);
}

/* ---------- About ---------- */
.bento {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap);
}

.card--wide p+p {
    margin-top: 12px;
}

.card--wide {
    color: var(--muted);
    font-size: 1.0625rem;
}

.facts {
    display: grid;
    gap: 18px;
}

.facts__row {
    display: grid;
    gap: 2px;
}

.facts dt {
    color: var(--muted);
    font-size: 0.875rem;
}

.facts dd {
    font-weight: 600;
}

/* ---------- Contact ---------- */
.contact__list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap);
}

.contact__item {
    position: relative;
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: 14px;
    align-items: center;
    transition: background-color 0.2s;
}

.contact__item:hover {
    background: var(--surface-hover);
}

.contact__icon {
    grid-row: span 2;
    color: var(--accent);
}

.contact__label {
    color: var(--muted);
    font-size: 0.875rem;
}

.contact__link {
    font-weight: 600;
    text-decoration: none;
    overflow-wrap: anywhere;
}

/* butun karta bosiladigan bo'lishi uchun */
.contact__link::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
}

/* ---------- Footer ---------- */
.site-footer {
    margin-top: 28px;
    padding-block: 24px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.875rem;
    text-align: center;
}

/* ==========================================================
   Responsive
   ========================================================== */

/* 320px — juda kichik ekranlar */
@media (max-width: 359px) {
    :root {
        --pad: 12px;
    }

    .card {
        padding: 16px;
    }

    .hero {
        padding: 22px 16px;
    }

    .nav__link {
        padding: 8px;
    }
}

/* 480px */
@media (min-width: 480px) {
    :root {
        --pad: 20px;
    }

    .hero {
        padding: 36px 28px;
    }
}

/* 576px */
@media (min-width: 576px) {
    .section {
        padding-block: 24px;
    }

    .section__title {
        font-size: 1.5rem;
    }

    .card {
        padding: 24px;
    }

    .hero {
        padding: 44px 36px;
    }
}

/* 768px — planshet */
@media (min-width: 768px) {
    :root {
        --gap: 16px;
        --pad: 28px;
    }

    .bento {
        grid-template-columns: repeat(12, 1fr);
    }

    .card--wide {
        grid-column: span 7;
    }

    .card--side {
        grid-column: span 5;
    }

    .hero {
        padding: 56px 48px;
        gap: 20px;
    }
}

/* 992px — noutbuk */
@media (min-width: 992px) {
    :root {
        --gap: 18px;
    }

    .section {
        padding-block: 32px;
    }

    .contact__list {
        grid-template-columns: repeat(3, 1fr);
    }

    .hero {
        padding: 72px 64px;
    }
}

/* 1200px — desktop */
@media (min-width: 1200px) {
    :root {
        --container: 1140px;
    }

    .hero__lead {
        font-size: 1.1875rem;
    }
}

/* 1400px — katta ekran */
@media (min-width: 1400px) {
    :root {
        --container: 1280px;
    }

    .hero {
        padding: 88px 80px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    * {
        transition: none !important;
    }
}

/* ---------- Certification ---------- */
.certs {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap);
}

.certs__item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.certs__name {
    margin: 0;
    font-size: 1.0625rem;
    font-weight: 600;
}

.certs__level {
    color: var(--muted);
    font-size: 0.9375rem;
}

.certs__level strong {
    color: var(--accent);
    font-size: 1.25rem;
    font-weight: 800;
}

@media (min-width: 768px) {
    .certs {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .certs {
        grid-template-columns: repeat(3, 1fr);
    }
}