:root {
    --bg-deep: #050508;
    --bg-primary: #0a0a0f;
    --bg-card: #111118;
    --bg-card-hover: #161625;
    --accent: #0cc0df;
    --accent-glow: rgba(12, 192, 223, 0.35);
    --accent-subtle: rgba(12, 192, 223, 0.08);
    --accent-medium: rgba(12, 192, 223, 0.18);
    --text-primary: #e8e8ee;
    --text-secondary: #b0b0bb;
    --text-muted: #6b6b7a;
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-card: rgba(255, 255, 255, 0.08);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
    --font-sans: 'Vazirmatn';
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1280px;
    --nav-height: 72px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    direction: rtl;
    text-align: right;
}

/* ---------- Ambient Background Effect ---------- */
.ambient-glow {
    position: fixed;
    pointer-events: none;
    z-index: 0;
    border-radius: 50%;
    filter: blur(180px);
    opacity: 0.12;
    will-change: transform;
}
.ambient-glow--top {
    width: 700px;
    height: 700px;
    background: var(--accent);
    top: -300px;
    left: -200px; /* mirrored for RTL */
    animation: ambientDrift 18s ease-in-out infinite;
}
.ambient-glow--bottom {
    width: 500px;
    height: 500px;
    background: #0cc0df;
    bottom: -200px;
    right: -150px; /* mirrored */
    animation: ambientDrift 22s ease-in-out infinite reverse;
}
@keyframes ambientDrift {
    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(-60px, -40px) scale(1.15);
    }
    50% {
        transform: translate(30px, 50px) scale(0.9);
    }
    75% {
        transform: translate(50px, -30px) scale(1.1);
    }
}

/* ---------- Grid Background ---------- */
.grid-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 70%);
}

/* ---------- Main Wrapper ---------- */
.site-wrapper {
    position: relative;
    z-index: 1;
    padding-left: 80px;
    padding-right: 80px;
}

/* ==================== NAVIGATION ==================== */
.nav {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1000;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    transition: var(--transition-smooth);
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
}
.nav--scrolled {
    background: rgba(10, 10, 15, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}
.nav__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.3rem;
    z-index: 1001;
}
.nav__logo svg {
    width: 38px;
    height: 38px;
    flex-shrink: 0;
    filter: drop-shadow(0 0 14px var(--accent-glow));
    transition: filter var(--transition-smooth);
}
.nav__logo:hover svg {
    filter: drop-shadow(0 0 24px rgba(12, 192, 223, 0.6));
}
.nav__links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}
.nav__links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
    padding: 4px 0;
}
.nav__links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transition: width var(--transition-smooth);
}
.nav__links a:hover {
    color: #fff;
}
.nav__links a:hover::after {
    width: 100%;
}
.nav__cta {
    background: var(--accent);
    color: #000 !important;
    padding: 10px 20px !important;
    border-radius: 50px;
    font-weight: 600 !important;
    transition: all var(--transition-smooth) !important;
    box-shadow: 0 0 20px var(--accent-glow);
}
.nav__cta:hover {
    box-shadow: 0 0 35px rgba(12, 192, 223, 0.55);
    transform: translateY(-1px);
}
.nav__cta::after {
    display: none !important;
}

/* Mobile nav toggle */
.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
    background: none;
    border: none;
    padding: 8px;
}
.nav__toggle span {
    width: 26px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: var(--transition-fast);
}
.nav__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.nav__toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 860px) {
    .nav__links {
        position: fixed;
        top: 0;
        left: -100%; /* slide from left for RTL */
        width: 280px;
        height: 100vh;
        flex-direction: column;
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        padding: 100px 32px 40px;
        gap: 20px;
        transition: left var(--transition-smooth);
        border-right: 1px solid var(--border-subtle);
        right: auto;
    }
    .nav__links--open {
        left: 0;
    }
    .nav__toggle {
        display: flex;
    }
    .site-wrapper {
        padding-left: 0;
        padding-right: 0;
    }
}

/* ==================== HERO ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
}
.hero__content {
    max-width: 780px;
    z-index: 2;
}
.hero__badge {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid var(--accent-medium);
    border-radius: 50px;
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-subtle);
    margin-bottom: 24px;
    font-weight: 600;
}
.hero__title {
    font-size: clamp(2.6rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.08;
    margin-bottom: 20px;
    color: #fff;
}
.hero__title span {
    color: var(--accent);
    position: relative;
}
.hero__title span::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--accent);
    opacity: 0.25;
    border-radius: 3px;
    z-index: -1;
}
.hero__subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 540px;
    margin: 0 auto 36px;
    line-height: 1.7;
}
.hero__buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-smooth);
    border: none;
    font-family: var(--font-sans);
}
.btn--primary {
    background: var(--accent);
    color: #000;
    box-shadow: 0 0 24px var(--accent-glow);
}
.btn--primary:hover {
    box-shadow: 0 0 40px rgba(12, 192, 223, 0.6);
    transform: translateY(-2px);
}
.btn--outline {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.25);
}
.btn--outline:hover {
    border-color: var(--accent);
    background: var(--accent-subtle);
    box-shadow: 0 0 20px var(--accent-glow);
}
.hero__scroll-indicator {
    position: absolute;
    bottom: 40px;
    right: 50%;
    transform: translateX(50%);
    animation: bounceDown 2s ease-in-out infinite;
    opacity: 0.6;
}
.hero__scroll-indicator svg {
    width: 28px;
    height: 28px;
    stroke: var(--accent);
    fill: none;
    stroke-width: 2;
}
@keyframes bounceDown {
    0%,
    100% {
        transform: translateX(50%) translateY(0);
    }
    50% {
        transform: translateX(50%) translateY(12px);
    }
}

/* ==================== SECTIONS ==================== */
.section {
    padding: 40px 24px;
    position: relative;
    z-index: 1;
}
.section__inner {
    max-width: var(--max-width);
    margin: 0 auto;
}
.section__label {
    font-size: 0.78rem;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 10px;
}
.section__title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 16px;
    color: #fff;
}
.section__desc {
    color: var(--text-secondary);
    max-width: 600px;
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 48px;
}

/* ---------- Service Cards Grid ---------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}
.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    cursor: default;
    text-decoration: none;
    color: inherit;
    display: block;
}
.service-card::before {
    content: '';
    position: absolute;
    top: -60px;
    left: -60px;
    width: 120px;
    height: 120px;
    background: var(--accent);
    opacity: 0;
    border-radius: 50%;
    filter: blur(60px);
    transition: opacity var(--transition-smooth);
}
.service-card:hover {
    border-color: rgba(12, 192, 223, 0.35);
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 40px rgba(12, 192, 223, 0.08);
    background: var(--bg-card-hover);
}
.service-card:hover::before {
    opacity: 0.2;
}
.service-card__icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    background: var(--accent-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    font-size: 1.5rem;
    position: relative;
    z-index: 1;
    border: 1px solid var(--accent-medium);
}
.service-card__title {
    font-weight: 700;
    font-size: 1.15rem;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
    color: #fff;
}
.service-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
    position: relative;
    z-index: 1;
}
.service-card__tag {
    font-size: 0.72rem;
    padding: 4px 10px;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
    font-family: var(--font-mono);
}
.service-card--featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, rgba(12, 192, 223, 0.08) 0%, var(--bg-card) 50%);
    border-color: rgba(12, 192, 223, 0.3);
}
.service-card--featured .service-card__icon {
    background: rgba(12, 192, 223, 0.2);
}

/* ---------- Partners ---------- */

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
    margin-top: 36px;
}

.partner-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;

    padding: 26px;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 18px;

    transition:
        transform var(--transition-fast),
        border-color var(--transition-fast),
        box-shadow var(--transition-fast);
}

.partner-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 12px 30px rgba(0,0,0,.25);
}

.partner-card__logo {
    width: 90px;
    height: 90px;
    object-fit: contain;
    margin-bottom: 18px;
    border-radius: 20px;
}

.partner-card__header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.partner-card__header h3 {
    margin: 0;
}

.partner-card__content p {
    margin: 0;
    line-height: 1.7;
}

.partner-tag {
    padding: 6px 12px;
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.partner-tag.project {
    background: rgba(74,222,128,.15);
    color: #4ade80;
}

.partner-tag.contribution {
    background: rgba(96,165,250,.15);
    color: #60a5fa;
}

.partner-tag.internship {
    background: rgba(251,191,36,.15);
    color: #fbbf24;
}

.partners-link {
    text-align:center;
    color:var(--text-muted);
    font-size:0.85rem;
    margin-top:20px;
}

.partners-link a {
    color:var(--accent);
}
/* ---------- Order / CTA Section ---------- */
.cta-section {
    text-align: center;
    padding: 80px 24px 100px;
}
.cta-section .section__title {
    margin-bottom: 10px;
}
.cta-section .btn {
    margin-top: 28px;
}

/* ---------- Order Form ---------- */
.order-form {
    max-width: 560px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.order-form input,
.order-form textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    color: #fff;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    resize: vertical;
    transition: border-color var(--transition-fast);
}
.order-form input:focus,
.order-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-subtle);
}
.order-form textarea {
    min-height: 130px;
}
.order-form button {
    align-self: flex-start;
}
.form-feedback {
    font-size: 0.9rem;
    margin-top: 8px;
    min-height: 24px;
    transition: all var(--transition-fast);
}
.form-feedback--success {
    color: #4ade80;
}
.form-feedback--error {
    color: #f87171;
}

/* ---------- Footer ---------- */
.footer {
    border-top: 1px solid var(--border-subtle);
    padding: 40px 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    position: relative;
    z-index: 1;
}
.footer a {
    color: var(--accent);
    text-decoration: none;
}
.footer__links {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

/* ---------- Animations ---------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal--visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    .hero {
        padding: 100px 16px 60px;
    }
    .section {
        padding: 60px 16px;
    }
    .services-grid {
        grid-template-columns: 1fr;
    }
    .med-banner {
        padding: 28px 20px;
        flex-direction: column;
        text-align: center;
    }
    .nav {
        padding: 0 16px;
    }
    .btn {
        padding: 12px 22px;
        font-size: 0.88rem;
    }
    .partner-card {
        flex-direction: column;
        text-align: center;
    }

    .partner-card__header {
        justify-content: center;
    }

    .partner-card__logo {
        width: 70px;
        height: 70px;
    }
}


/* ---------- Section Nav ---------- */
.section-nav {
    direction: ltr;
    position: fixed;
    top: 50%;
    left: 24px;
    transform: translateY(-50%);
    z-index: 900;
    display: flex;
    flex-direction: column;
    gap: 20px;
    list-style: none;
    padding: 0;
    margin: 0;
}
.section-nav li a {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    transition: color var(--transition-fast);
}
.section-nav li a::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.25);
    transition: background var(--transition-fast), box-shadow var(--transition-fast);
}
.section-nav li a.active {
    color: var(--accent);
}
.section-nav li a.active::before {
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
}
.section-nav li a:hover {
    color: #fff;
}
@media (max-width: 860px) {
    .section-nav {
        display: none;
    }
}

/* ---------- Testimonials ---------- */

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.testimonial-card {
    position: relative;
    overflow: hidden;

    display: flex;
    flex-direction: column;
    justify-content: space-between;

    padding: 30px;

    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);

    transition:
        transform var(--transition-smooth),
        border-color var(--transition-fast),
        background var(--transition-fast),
        box-shadow var(--transition-fast);
}

.testimonial-card::before {
    content: "";
    position: absolute;
    top: -70px;
    left: -70px;

    width: 140px;
    height: 140px;

    border-radius: 50%;
    background: var(--accent);

    opacity: 0;
    filter: blur(70px);

    transition: opacity var(--transition-smooth);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    background: var(--bg-card-hover);
    border-color: rgba(12,192,223,.35);

    box-shadow:
        0 18px 45px rgba(0,0,0,.45),
        0 0 40px rgba(12,192,223,.08);
}

.testimonial-card:hover::before {
    opacity: .2;
}

.testimonial-card__quote {
    position: relative;
    z-index: 1;

    color: var(--text-secondary);
    line-height: 1.9;
    font-size: 1rem;
}

.testimonial-card__quote::before {
    content: "“";

    display: block;

    margin-bottom: 12px;

    color: var(--accent);
    font-size: 3rem;
    line-height: .8;
    font-family: Georgia, serif;
}

.testimonial-card__footer {
    position: relative;
    z-index: 1;

    display: flex;
    align-items: center;
    gap: 16px;

    margin-top: 28px;
}

.testimonial-card__avatar {
    width: 58px;
    height: 58px;

    object-fit: cover;

    border-radius: 50%;
    border: 2px solid rgba(12,192,223,.25);
}

.testimonial-card__footer h3 {
    margin: 0;
    color: #fff;
    font-size: 1rem;
}

.testimonial-card__footer span {
    display: block;
    margin-top: 3px;

    color: var(--text-muted);
    font-size: .85rem;
}

/* Optional star rating */

.testimonial-card__stars {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    color: #fbbf24;
    font-size: .9rem;
}

@media (max-width: 640px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .testimonial-card {
        padding: 24px;
    }
}