/* پایه و متغیرها */
:root {
    --bg: #ffffff;
    --surface: #ffffff;
    --muted: #6b7280;
    --text: #0f1724;
    --accent: #00c389;
    --accent-dark: #018f66;
    --nav-dark: #0b1220;

    --container-max: 1200px;
    --radius: 12px;
    --gap: 20px;
    --transition: 220ms ease;
    --card-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

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

html,
body {
    height: 100%
}

body {
    font-family: "Vazirmatn", "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* کانتینر */
.container {
    width: 90%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 28px 0
}

/* NAV */
.nav {
    position: sticky;
    top: 0;
    z-index: 80;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.9));
    backdrop-filter: blur(4px);
    border-bottom: 1px solid rgba(2, 6, 23, 0.04)
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 0
}

.brand {
    font-weight: 800;
    font-size: 20px;
    color: var(--nav-dark);
    text-decoration: none
}

.brand-accent {
    color: var(--accent);
    margin-inline-start: 6px
}

.nav-left {
    display: flex;
    gap: 14px;
    align-items: center
}

.nav-left a {
    color: var(--muted);
    text-decoration: none;
    padding: 8px 10px;
    border-radius: 8px;
    font-weight: 600
}

.nav-left a:hover {
    background: rgba(2, 6, 23, 0.03);
    color: var(--text)
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid transparent;
    text-decoration: none;
    cursor: pointer
}

.btn.small {
    padding: 8px 12px;
    font-size: 14px
}

.btn.primary {
    background: linear-gradient(90deg, var(--accent), var(--accent-dark));
    color: #fff;
    box-shadow: 0 8px 30px rgba(1, 143, 102, 0.12)
}

.btn.outline {
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent)
}

.btn:hover {
    transform: translateY(-3px);
    transition: transform var(--transition)
}

/* HERO */
.hero {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 36px;
    align-items: center;
    padding: 48px 0
}

.title {
    font-size: 36px;
    line-height: 1.05;
    margin-bottom: 12px;
    color: var(--nav-dark)
}

.subtitle {
    color: var(--muted);
    margin-bottom: 18px;
    max-width: 720px
}

.hero-cta {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 20px
}

/* trusted logos */
.trusted {
    margin-top: 18px;
    display: flex;
    flex-direction: column;
    gap: 8px
}

.logos {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-top: 6px
}

.logo {
    width: 54px;
    height: 34px;
    border-radius: 8px;
    background: #f6f6f6;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    font-weight: 700;
    box-shadow: 0 6px 18px rgba(2, 6, 23, 0.03)
}

/* profile card on right */
.profile-card {
    border-radius: 14px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    background: #fff
}

.profile-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    max-height: 420px
}

.profile-meta {
    padding: 14px
}

.profile-meta h3 {
    margin-bottom: 4px
}

/* SECTION common */
.section {
    padding: 40px 0
}

.section-title {
    font-size: 20px;
    color: var(--nav-dark);
    margin-bottom: 6px
}

.section-desc {
    color: var(--muted);
    margin-bottom: 16px
}

/* projects grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 18px
}

.project-card {
    background: var(--surface);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition)
}

.project-card:hover {
    transform: translateY(-8px)
}

.project-card .thumb {
    height: 160px;
    background-size: cover;
    background-position: center
}

.pc-body {
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px
}

.pc-body h3 {
    font-size: 16px;
    margin-bottom: 4px
}

.muted {
    color: var(--muted);
    font-size: 14px
}

.pc-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px
}

.tag {
    background: #f0fff7;
    color: var(--accent-dark);
    padding: 6px 8px;
    border-radius: 999px;
    font-weight: 700
}

.link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 700
}

/* skills */
.pale {
    background: #f7fdfb
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px
}

.skill {
    background: #fff;
    padding: 18px;
    border-radius: 12px;
    box-shadow: var(--card-shadow)
}

.bar {
    height: 10px;
    background: #f0f4f2;
    border-radius: 10px;
    overflow: hidden;
    margin-top: 8px
}

.bar>div {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-dark))
}

/* about grid */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 20px;
    align-items: start
}

.contact-list {
    list-style: none;
    margin-top: 10px
}

/* footer */
.footer {
    background: #0b1220;
    color: #e6edf3;
    padding: 36px 0;
    margin-top: 30px;
    border-radius: 8px 8px 0 0
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: flex-start
}

.footer a {
    color: #bfeed8
}

/* responsive */
@media (max-width:1100px) {
    .hero {
        grid-template-columns: 1fr 360px
    }

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

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

    .about-grid {
        grid-template-columns: 1fr
    }

    .footer-inner {
        flex-direction: column
    }
}

@media (max-width:700px) {
    .nav-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px
    }

    .hero {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 28px 0
    }

    .profile-card {
        order: -1
    }

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

    .skills-grid {
        grid-template-columns: 1fr
    }
}