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

:root {
    --primary-purple: #9b51e0;
    --primary-dark: #7c3aed;
    --primary-light: #c084fc;
    --white: #ffffff;
    --light-gray: #f8fafc;
    --medium-gray: #f1f5f9;
    --border-gray: #e2e8f0;
    --dark-gray: #1e293b;
    --text-muted: #5b6b82;
    --black: #0f172a;
    --header-bg: rgba(255, 255, 255, 0.95);
    --header-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    --card-radius: 1.5rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f5f5f5;
}

::-webkit-scrollbar-thumb {
    background: #9b51e0;
}

::-webkit-scrollbar-thumb:hover {
    background: #7c3aed;
}

@font-face {
    font-family: 'Lahzeh';
    src: url('../font/Lahzeh-RegularSemiStretch.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Lahzeh';
    src: url('../font/Lahzeh-MediumSemiStretch.woff2') format('woff2');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Lahzeh';
    src: url('../font/Lahzeh-BoldSemiStretch.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

body {
    font-family: 'Lahzeh', 'Vazir', sans-serif;
    background-color: var(--white);
    color: var(--dark-gray);
    line-height: 1.6;
    scroll-behavior: smooth;
}

h1,
h2,
h3,
h4 {
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

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

ul {
    list-style: none;
}

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

.site-header {
    position: fixed;
    top: 1.25rem;
    left: 50%;
    transform: translateX(-50%);
    width: 92%;
    max-width: 1280px;
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 2rem;
    box-shadow: var(--header-shadow);
    z-index: 1100;
    transition: var(--transition);
    border: 1px solid rgba(155, 81, 224, 0.15);
}

.site-header.scrolled {
    top: 0.5rem;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 2rem;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
}

.logo-wrapper:hover .logo-brand {
    color: var(--primary-purple);
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 46px;
    width: auto;
    object-fit: contain;
    transition: var(--transition);
}

.logo-wrapper:hover img {
    transform: scale(1.02);
}

.logo-brand {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark-gray);
    transition: var(--transition);
    letter-spacing: -0.5px;
}

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

.main-nav ul {
    display: flex;
    gap: 2rem;
}

.main-nav ul li a {
    font-weight: 500;
    font-size: 1rem;
    padding: 0.5rem 0;
    position: relative;
    color: var(--dark-gray);
}

.main-nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    right: 0;
    width: 0;
    height: 2.5px;
    background: linear-gradient(90deg, var(--primary-purple), var(--primary-light));
    border-radius: 4px;
    transition: width 0.3s ease;
}

.main-nav ul li a:hover {
    color: var(--primary-purple);
}

.main-nav ul li a:hover::after {
    width: 100%;
}

.main-nav ul li a.active {
    color: var(--primary-purple);
    font-weight: 700;
}

.main-nav ul li a.active::after {
    width: 100%;
}

.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 44px;
    height: 44px;
    padding: 0;
    background: rgba(155, 81, 224, 0.1);
    border: none;
    border-radius: 1rem;
    cursor: pointer;
    z-index: 1150;
    transition: var(--transition);
    flex-shrink: 0;
}

.mobile-nav-toggle:hover {
    background: rgba(155, 81, 224, 0.2);
}

.mobile-nav-toggle span {
    display: block;
    width: 26px;
    height: 2.5px;
    background-color: var(--primary-purple);
    border-radius: 4px;
    transition: all 0.35s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    transform-origin: center center;
    flex-shrink: 0;
    backface-visibility: hidden;
}

.site-header.nav-open .mobile-nav-toggle span:first-child {
    transform: translateY(8.5px) rotate(45deg);
}

.site-header.nav-open .mobile-nav-toggle span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.site-header.nav-open .mobile-nav-toggle span:last-child {
    transform: translateY(-8.5px) rotate(-45deg);
}

.mobile-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 1.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-20px) scale(0.98);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(155, 81, 224, 0.2);
    z-index: 1050;
}

.site-header.nav-open .mobile-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.mobile-nav ul li {
    text-align: center;
    margin: 0.3rem 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mobile-nav ul li a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.65rem 1.5rem;
    border-radius: 2rem;
    color: var(--dark-gray);
    transition: var(--transition);
    min-width: 140px;
    max-width: 200px;
    width: 100%;
    text-align: center;
    white-space: nowrap;
    letter-spacing: 0.3px;
}

.mobile-nav ul li a.active,
.mobile-nav ul li a:hover {
    background: linear-gradient(135deg, rgba(155, 81, 224, 0.15), rgba(192, 132, 252, 0.1));
    color: var(--primary-purple);
    transform: translateX(-4px);
}

.mobile-brand {
    display: none;
}

section {
    padding: 6rem 2rem;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    scroll-margin-top: 90px;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

#home {
    background: linear-gradient(135deg, #faf5ff 0%, #f3e8ff 100%);
}

#services {
    background: var(--white);
}

#portfolio {
    background: var(--medium-gray);
}

#about {
    background: var(--white);
}

#contact {
    background: var(--light-gray);
}

#blog {
    background: var(--white);
}

.hero-title,
.section-title {
    font-size: 3rem;
    background: linear-gradient(120deg, var(--primary-purple), var(--primary-light));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    margin-bottom: 1rem;
}

.section-sub {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
}

.mobile-app-navbar {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 92%;
    max-width: 460px;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 3rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    padding: 0.6rem 0.8rem;
    z-index: 1200;
    border: 1px solid rgba(155, 81, 224, 0.2);
    justify-content: space-around;
    align-items: center;
    animation: fadeSlideUp 0.4s ease-out;
}

@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translate(-50%, 40px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

.mobile-app-navbar .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.15rem;
    padding: 0.35rem 0.5rem;
    border-radius: 2rem;
    transition: all 0.25s ease;
    color: var(--text-muted);
    min-width: 50px;
    min-height: 50px;
    flex: 1;
    max-width: 75px;
}

.mobile-app-navbar .nav-item:hover {
    transform: translateY(-2px);
}

.mobile-app-navbar .nav-item img {
    width: 22px;
    height: 22px;
    transition: transform 0.25s ease;
}

.mobile-app-navbar .nav-item span {
    font-size: 0.65rem;
    font-weight: 500;
    white-space: nowrap;
}

.mobile-app-navbar .nav-item.active {
    background: linear-gradient(135deg, rgba(155, 81, 224, 0.2), rgba(192, 132, 252, 0.1));
    color: var(--primary-purple);
    border-radius: 2rem;
}

.mobile-app-navbar .nav-item.active img {
    transform: scale(1.1);
}

.footer-wave {
    width: 100%;
    height: 110px;
    overflow: hidden;
    line-height: 0;
    margin: 0 0 -1px;
    pointer-events: none;
}

.footer-wave svg {
    display: block;
    width: 100%;
    height: 100%;
}

.footer-wave path {
    fill: #0f172a;
}

.footer-wave path:nth-child(1) {
    opacity: 0.2;
}

.footer-wave path:nth-child(2) {
    opacity: 0.5;
}

.footer-wave path:nth-child(3) {
    opacity: 1;
}

.home-page .site-footer {
    margin-top: 0;
}

.site-footer {
    background: linear-gradient(180deg, #0f172a 0%, #0a0f1c 100%);
    color: #cbd5e1;
    padding: 3rem 0 1rem;
    margin-top: 0;
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    display: none;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 2rem;
}

.footer-section {
    flex: 1;
    min-width: 200px;
}

.footer-section h3 {
    color: var(--primary-light);
    font-size: 1.2rem;
    margin-bottom: 1.2rem;
    position: relative;
    display: inline-block;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: -6px;
    right: 0;
    width: 35px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-purple), var(--primary-light));
    border-radius: 4px;
}

.footer-section p,
.footer-section ul li {
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
}

.footer-section ul li a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--primary-light);
    transform: translateX(-4px);
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.8rem;
}

.contact-icon {
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.contact-icon img {
    width: 18px;
    height: 18px;
    opacity: 0.8;
}

.social-icons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 1rem;
    transition: var(--transition);
}

.social-icons a:hover {
    background: var(--primary-purple);
    transform: translateY(-4px);
}

.social-icons img {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    text-align: center;
    padding: 1.5rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.8rem;
    color: #64748b;
}

@media (max-width: 992px) {
    .header-container {
        padding: 0.6rem 1.5rem;
    }

    .logo img {
        height: 40px;
    }

    .logo-brand {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .site-header {
        top: 1rem;
        width: 95%;
        border-radius: 1.5rem;
    }

    .main-nav {
        display: none;
    }

    .mobile-nav-toggle {
        display: flex;
    }

    .mobile-app-navbar {
        display: flex;
    }

    section {
        padding: 5rem 1.25rem;
        scroll-margin-top: 100px;
    }

    .hero-title,
    .section-title {
        font-size: 2rem;
    }

    .footer-container {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .footer-section h3::after {
        right: 50%;
        transform: translateX(50%);
    }

    .social-icons {
        justify-content: center;
    }

    .contact-info p {
        justify-content: center;
    }

    
    .logo-wrapper .logo-brand {
        display: none;
    }

    
    .mobile-brand {
        display: block;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--dark-gray);
    }

    .mobile-brand span {
        color: var(--primary-purple);
    }

    .header-container {
        justify-content: space-between;
        position: relative;
    }

    
    .mobile-nav ul li a {
        min-width: 120px;
        max-width: 180px;
        font-size: 0.9rem;
        padding: 0.55rem 1.2rem;
    }

    
    .mobile-app-navbar .nav-item {
        min-width: 45px;
        min-height: 45px;
        max-width: 70px;
        padding: 0.3rem 0.4rem;
    }

    .mobile-app-navbar .nav-item img {
        width: 20px;
        height: 20px;
    }

    .mobile-app-navbar .nav-item span {
        font-size: 0.6rem;
    }
}

@media (max-width: 480px) {
    .site-header {
        width: 96%;
        top: 0.75rem;
    }

    .mobile-app-navbar {
        width: 96%;
        bottom: 12px;
        padding: 0.4rem 0.4rem;
        border-radius: 2.5rem;
    }

    .hero-title {
        font-size: 1.6rem;
    }

    .section-sub {
        font-size: 1rem;
    }

    .mobile-brand {
        font-size: 0.9rem;
    }

    
    .mobile-nav ul li a {
        min-width: 100px;
        max-width: 160px;
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }

    .mobile-nav {
        padding: 0.8rem 0;
    }

    .mobile-nav ul li {
        margin: 0.2rem 0;
    }

    
    .mobile-app-navbar .nav-item {
        min-width: 40px;
        min-height: 40px;
        max-width: 60px;
        padding: 0.25rem 0.3rem;
        gap: 0.1rem;
    }

    .mobile-app-navbar .nav-item img {
        width: 18px;
        height: 18px;
    }

    .mobile-app-navbar .nav-item span {
        font-size: 0.55rem;
    }
}

@media (max-width: 380px) {
    
    .mobile-nav ul li a {
        min-width: 85px;
        max-width: 140px;
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }

    
    .mobile-app-navbar .nav-item {
        min-width: 35px;
        min-height: 35px;
        max-width: 50px;
        padding: 0.2rem 0.2rem;
    }

    .mobile-app-navbar .nav-item img {
        width: 16px;
        height: 16px;
    }

    .mobile-app-navbar .nav-item span {
        font-size: 0.5rem;
    }

    .mobile-app-navbar {
        padding: 0.3rem 0.3rem;
        border-radius: 2rem;
    }
}

@media (max-width: 768px) and (orientation: landscape) {
    .mobile-nav ul li a {
        min-width: 130px;
        max-width: 190px;
        font-size: 0.9rem;
        padding: 0.5rem 1.2rem;
    }

    .mobile-nav {
        padding: 0.6rem 0;
    }

    .mobile-nav ul li {
        margin: 0.2rem 0;
    }

    .mobile-app-navbar .nav-item {
        min-width: 42px;
        min-height: 42px;
        max-width: 65px;
        padding: 0.25rem 0.35rem;
    }

    .mobile-app-navbar .nav-item img {
        width: 19px;
        height: 19px;
    }

    .mobile-app-navbar .nav-item span {
        font-size: 0.55rem;
    }
}

@media (max-width: 768px) {
    .site-footer {
        padding-bottom: 85px;
    }
}

@media (max-width: 480px) {
    .site-footer {
        padding-bottom: 75px;
    }
}

@media (max-width: 380px) {
    .site-footer {
        padding-bottom: 65px;
    }
}