/* ================= Variables ================= */
:root {
    --bg: #e9eef6;
    --surface: #0f1724;
    --muted: #6b7280;
    --text: #0b0b0b;
    --accent: #000000;
    --accent-2: #1a1b1b;
    --glass: rgba(243, 243, 243, 0);
    --border: rgba(0, 0, 0, 0.06);
    --radius: 12px;
    --container: 1200px;
    --max-width: 1100px;
    --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", "Segoe UI Mono", monospace;
    --card-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
    --muted-2: #9aa1a8;
}

/* ================= Base Reset ================= */
* {
    font-family: "product", "dana";
    box-sizing: border-box;
}

html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-family: "dana", "product";
    direction: rtl;
}

@font-face {
    font-family: "dana";
    src: url("/fonts/Dana-Medium.ttf") format("truetype");
    font-weight: 100 900;
    font-display: swap;
}

@font-face {
    font-family: "product";
    src: url("/fonts/ProductSans-Medium.ttf") format("truetype");
    font-weight: 100 900;
    font-display: swap;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 20px;
}

/* ================= Header (شیشه ضخیم عینک – غلیظ، شفاف و واقعی) ================= */
header.appbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 18px 28px; /* کمی بیشتر برای حس ضخامت */
    position: sticky;
    top: 20px;
    background: rgba(255, 255, 255, 0.651); /* شفافیت ملایم برای دیدن کامل پشت */
    border-radius: 50px;
    box-shadow: 
        0 8px 30px rgba(190, 188, 188, 0.61),   /* سایه خارجی عمیق */
        inset 0 4px 20px rgba(161, 156, 156, 0.558); /* هایلایت داخلی برای حس ضخامت */
    backdrop-filter: blur(28px); /* بلور قوی مثل عدسی عینک */
    -webkit-backdrop-filter: blur(28px);
    border: 0.7px solid rgba(182, 178, 178, 0.401); /* لبه ضخیم شیشه‌ای */
    z-index: 50;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    font-weight: 900;
    font-size: 15px;
}

.brand h1 {
    margin: 0;
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 0.3px;
}

.brand p {
    margin: 0;
    color: var(--muted);
    font-size: 12px;
}

nav.desktop {
    display: flex;
    gap: 150;
}

nav.desktop a {
    padding: 8px 10px;
    color: #000000;
    font-weight: 600;
    font-size: 12px;
}

.logo-p {
    display: flex;
}

.center-tags {
    display: flex;
    margin-left: 150px;
}

.left-tags {
    display: flex;
    gap: 12px;
}

.left-tags a {
    text-align-last: left;
    border-radius: 50px;
    font-size: 10px;
    padding: 20px 30px;
}

.left-tags a:hover {
    text-align-last: left;
}

.center-tags a {
    transition: all 0.3s ease;
    border-radius: 0;
}

.center-tags a:hover {
    transition: all 0.3s ease;
    border-radius: 0;
}

nav.desktop a.cta {
    background: transparent;
    border: 1px solid var(--border);
    padding: 8px 12px;
    color: var(--text);
}

nav.desktop a.primary {
    border: 1px solid rgba(0, 0, 0, 0.04);
    color: var(--text);
}

.burger {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 50px;
    background: transparent;
    border: 1px solid rgba(0, 0, 0, 0.06);
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

/* ================= Hero ================= */
.hero {
    display: grid;
    gap: 30px;
    align-items: center;
    padding: 48px 0;
    max-width: var(--max-width);
    margin: 0 auto;
}

.eyebrow {
    display: inline-block;
    font-size: 12px;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--glass);
    color: #151515;
    font-weight: 700;
}

.hero h2 {
    font-size: 62px;
    text-align: center;
    line-height: 1.06;
    font-weight: 900;
    letter-spacing: 0.2px;
}

.logo-hero {
    margin: auto;
    margin-top: 20px;
    width: 130px;
}

.lead {
    color: #000000;
    font-size: 15px;
    margin: auto;
    max-width: 62ch;
}

.cta-row {
    margin: auto;
    gap: 10px;
    align-items: center;
    text-align: center;
    margin-top: 12px;
}

.btn {
    padding: 12px 18px;
    border-radius: 40px;
    font-weight: 800;
    font-size: 11px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    cursor: pointer;
    display: inline-flex;
    gap: 8px;
    align-items: center;
    background: transparent;
}

.btn.primary {
    background: var(--accent);
    color: #fff;
    border: none;
}

.btn.ghost {
    text-align: center;
    background: transparent;
    color: var(--muted);
    border: 1px dashed rgba(0, 0, 0, 0.04);
    width: auto;
    height: 40px;
}

.btn-join {
    margin-top: 0px;
    padding: 30px 30px;
    font-size: 14px;
}

.hero-stats {
    display: flex;
    gap: 10px;
    margin: auto;
    justify-content: center;
    align-content: center;
    text-align: center;
    margin-top: 18px;
    flex-wrap: wrap;
}

.hero-stat {
    padding: 10px;
    border-radius: 10px;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.03);
    min-width: 120px;
    text-align: center;
}

.hero-stat strong {
    display: block;
    font-size: 18px;
}

aside.panel {
    background: var(--card-bg);
    padding: 16px;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

/* ================= Sections ================= */
.section {
    padding: 34px 0;
    border-top: 1px solid rgba(0, 0, 0, 0.02);
}

.section h3 {
    margin: 0 0 12px;
    font-size: 20px;
}

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

.card {
    background: #ffffff;
    padding: 24px;
    border-radius: 40px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: 0 10px 30px rgba(16, 24, 40, 0.04);
}

.card h4 {
    margin: 0 0 8px;
    font-size: 18px;
}

.muted {
    color: #000000;
    font-size: 13px;
    line-height: 1.5;
}

.thumb {
    height: 130px;
    border-radius: 30px;
    background: linear-gradient(135deg, #737373, #434343);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #ffffff;
    font-size: 18px;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.h4-thumb {
    padding-top: 8px;
    text-align-last: center;
}

/* Projects full list */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-top: 14px;
}

/* Case studies */
.case-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-top: 14px;
}

.media-th {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.media-s-th {
    padding: 10px 30px;
    border-radius: 50px;
    border: #8e8b8b solid 1px;
}

.media-s-th {
    font-size: 12px;
    color: #151515;
    text-align: center;
    justify-content: center;
    align-content: center;
}

/* ================= Mobile Navigation اصلاح‌شده ================= */
.mobile-nav {
    position: fixed;
    bottom: 120px; /* فاصله از پایین (بالای هدر موبایل) */
    left: 50%; /* برای وسط چین کردن */
    transform: translateX(-50%) translateY(100%); /* بسته: پایین صفحه */
    width: 80%;
    max-height: 70vh;
    padding: 22px;
    z-index: 60;

    background: rgba(255, 255, 255, 0); /* شفافیت ملایم برای دیدن کامل پشت */
    border-radius: 40px;
    box-shadow: 
        0 8px 32px rgba(56, 56, 56, 0.233),   /* سایه خارجی عمیق */
        inset 0 2px 8px rgba(175, 175, 175, 0.603);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(4px);
    border: 0;

    /* حالت بسته */
    opacity: 0;
    pointer-events: none;

    transition: 
        transform 0.32s cubic-bezier(.22, 1, .36, 1),
        opacity 0.22s ease;
}

/* حالت باز */
.mobile-nav.active {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.mobile-nav a {
    display: flex;
    padding: 12px 16px;
    border-radius: 50px;
    border: 1px solid rgba(56, 56, 56, 0.332);
    margin-bottom: 8px;
    font-weight: 500;
    background-color: #ffffff6f;
    color: var(--text);
    text-align: center;
    font-size: 12px;
}

.mobile-nav a.primary {
    background: var(--accent);
    color: #f6f3f3;
    border: none;
}


.kpi {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-top: 8px;
}

.kpi strong {
    font-size: 18px;
}

a {
    text-decoration: none;
}

/* Manifesto */
.manifesto {
    background: #ffffff;
    padding: 28px;
    border-radius: 40px;
    border: 1px solid rgba(0, 0, 0, 0.03);
    font-size: 14px;
}

/* Careers */
.jobs {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 12px;
}

.job {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 30px;
    border-radius: 50px;
    border: 1px solid rgba(0, 0, 0, 0.03);
    background: #fff;
}

/* Contact */
.contact-card {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 14px;
    padding: 14px;
    border-radius: 40px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    background: #ffffff;
    margin-top: 12px;
}

input,
textarea,
select {
    background: transparent;
    border: 1px solid rgba(0, 0, 0, 0.04);
    padding: 20px;
    border-radius: 40px;
    color: var(--text);
    width: 100%;
    outline: none;
    font-size: 14px;
    margin-bottom: 10px;
}

textarea {
    min-height: 140px;
    resize: vertical;
}

.mail-put {
    width: 250px;
}

/* Footer */
footer {
    justify-content: center;
    padding: 28px 0;
    border-top: 1px solid rgba(0, 0, 0, 0.02);
    margin-top: 22px;
}

.footer-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20%;
    font-size: 14px;
    color: var(--muted);
}

/* Misc */
.hover-lift {
    transition: transform .14s ease, box-shadow .14s ease;
}

/* Responsive */
@media (max-width:1100px) {
    .hero {
        grid-template-columns: 1fr 1fr;
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .case-grid {
        grid-template-columns: 1fr;
    }

    .contact-card {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width:760px) {

    .footer-grid {
        margin-bottom: 60px;
    }

    input,
    textarea,
    select {
        width: 100%;
    }

    nav.desktop {
        display: none;
    }

    .burger {
        display: flex;
    }

    .hero {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .grid-3 {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 16px;
    }

    .logo {
        width: 44px;
        height: 44px;
    }

    header.appbar {
        position: fixed;
        top: auto;
        bottom: 16px;
        left: 16px;
        right: 16px;
        z-index: 70;
        border-radius: 50px;
    }

    body {
        padding-bottom: 96px;
    }
}

@media (max-width:420px) {
    .brand h1 {
        font-size: 15px;
    }

    .hero h2 {
        font-size: 20px;
    }
}

.img-lang {
    width: 26px;
    margin: auto;
    border-radius: 6px;
}

.flex-lang {
    display: flex;
    gap: 10px;
    margin: auto;
}

a:hover {
    text-decoration: none;
}