/* 1. Variables & Reset */
:root {
    --primary: #00f2fe;
    /* آبی یخی مدرن */
    --secondary: #4facfe;
    --bg-dark: #0a0a0a;
    --bg-card: #161616;
    --bg-alt: #111111;
    --text-main: #e0e0e0;
    --text-muted: #999;
    --glass: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@font-face {
    font-family: 'Dibaj';
    src: url('./Font/Dibaj-Black.woff2') format('woff2'),
        url('./Font/Dibaj-Black.woff') format('woff');
    font-weight: 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Dibaj';
    src: url('./Font/Dibaj-Bold.woff2') format('woff2'),
        url('./Font/Dibaj-Bold.woff') format('woff');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Dibaj';
    src: url('./Font/Dibaj-ExtraBold.woff2') format('woff2'),
        url('./Font/Dibaj-ExtraBold.woff') format('woff');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Dibaj';
    src: url('./Font/Dibaj-Light.woff2') format('woff2'),
        url('./Font/Dibaj-Light.woff') format('woff');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Dibaj';
    src: url('./Font/Dibaj-Medium.woff2') format('woff2'),
        url('./Font/Dibaj-Medium.woff') format('woff');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Dibaj';
    src: url('./Font/Dibaj-Regular.woff2') format('woff2'),
        url('./Font/Dibaj-Regular.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Dibaj';
    src: url('./Font/Dibaj-SemiBold.woff2') format('woff2'),
        url('./Font/Dibaj-SemiBold.woff') format('woff');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Dibaj SuperBlack';
    src: url('./Font/Dibaj-SuperBlack.woff2') format('woff2'),
        url('./Font/Dibaj-SuperBlack.woff') format('woff');
    font-weight: 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Dibaj';
    src: url('./Font/Dibaj-UltraLight.woff2') format('woff2'),
        url('./Font/Dibaj-UltraLight.woff') format('woff');
    font-weight: 200;
    font-style: normal;
    font-display: swap;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Dibaj';

}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Segoe UI', Tahoma, sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 2. Typography & Helpers */
.text-gradient {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section {
    padding: 120px 0;
}

.bg-alt {
    background-color: var(--bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.title-line {
    width: 60px;
    height: 4px;
    background: var(--primary);
    margin: 0 auto;
    border-radius: 2px;
}

/* 3. Header (Glassmorphism) */
.glass-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.7);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-size: 1.5rem;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
}

/* 4. Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: radial-gradient(circle at center, #1a1a1a 0%, #0a0a0a 100%);
}

.hero h1 {
    font-size: clamp(2.5rem, 10vw, 4.5rem);
    margin-bottom: 20px;
}

.subtitle {
    font-size: clamp(1rem, 3vw, 1.5rem);
    color: var(--text-muted);
    margin-bottom: 40px;
}

.cta-group {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* Buttons */
.btn {
    padding: 14px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
    border: none;
    font-size: 1.5rem;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    color: #000;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 242, 254, 0.3);
}

.btn-secondary {
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    background: var(--glass);
}

.btn-secondary:hover {
    background: var(--glass-border);
}

.btn-full {
    width: 100%;
}

a {
    text-decoration: none;
}

/* 5. About Section */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: justify;
    color: var(--text-muted);
    font-size: 1.5rem;
}

/* 6. Portfolio Grid (Responsive & Modern) */
.portfolio-grid {
    display: grid;
    /* ایجاد گرید خودکار: در موبایل ۱، در تبلت ۲، در دسکتاپ ۳ */
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.portfolio-card {
    background: var(--bg-card);
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

.portfolio-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.card-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-card:hover .card-image img {
    transform: scale(1.05);
}

.card-info {
    padding: 25px;
}

.card-info h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
    color: var(--text-main);
}

.card-info p {
    color: var(--text-muted);
    font-size: 1.3rem;
}

/* 7. Skills Section */
.skills-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.skill-tag {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    padding: 10px 25px;
    border-radius: 50px;
    font-size: 1.5rem;
    transition: var(--transition);
}

.skill-tag:hover {
    background: var(--primary);
    color: #000;
}

/* 8. Contact Form */
.contact-card {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 40px;
    border-radius: 30px;
    border: 1px solid var(--glass-border);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    background: var(--bg-dark);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: white;
    outline: none;
    transition: var(--transition);
    font-size: 1.5rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--primary);
}

/* 9. Footer */
.footer {
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 1.5rem;
}

/* 10. Responsive (Mobile Optimizations) */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    /* برای سادگی فعلاً مخفی */

    .form-row {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .section {
        padding: 80px 0;
    }

    .contact-card {
        padding: 25px;
    }
}