:root {
    --bg: #0b1220;
    --bg-soft: #111a2c;
    --white: #ffffff;
    --text: #1d2433;
    --text-soft: #68758a;
    --line: rgba(15, 23, 42, 0.08);
    --primary: #1f6bff;
    --primary-dark: #124fd1;
    --accent: #7fd3ff;
    --section: #f6f8fc;
    --section-2: #eef4ff;
    --success: #15803d;
    --error: #b91c1c;
    --shadow: 0 20px 50px rgba(15, 23, 42, 0.10);
    --shadow-soft: 0 12px 30px rgba(15, 23, 42, 0.08);
    --radius: 22px;
    --radius-sm: 14px;
    --container: 1240px;
    --header-height: 88px;
    --transition: 0.30s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--white);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea {
    font: inherit;
}

.site-wrapper {
    min-height: 100vh;
}

.container {
    width: min(92%, var(--container));
    margin: 0 auto;
}

main {
    padding-top: var(--header-height);
}

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.main-header.scrolled {
    box-shadow: 0 14px 40px rgba(15, 23, 42, 0.07);
    border-bottom-color: rgba(15, 23, 42, 0.06);
}

.header-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-logo,
.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.site-logo img,
.footer-logo img {
    width: 54px;
    height: 54px;
    object-fit: contain;
}

.site-logo span,
.footer-logo span {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 0.4px;
}

.nav-list {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-list a {
    position: relative;
    color: #334155;
    font-weight: 600;
    transition: var(--transition);
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--primary);
}

.nav-list a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-list a:hover::after,
.nav-list a.active::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.menu-toggle,
.mobile-menu-close {
    width: 46px;
    height: 46px;
    border: none;
    border-radius: 12px;
    background: #eef4ff;
    color: var(--text);
    display: none;
    place-items: center;
    cursor: pointer;
    font-size: 1.4rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: none;
    border-radius: 14px;
    font-weight: 700;
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
}

.btn-sm {
    padding: 12px 18px;
}

.btn-primary {
    padding: 15px 24px;
    background: linear-gradient(135deg, var(--primary), #3c8cff);
    color: var(--white);
    box-shadow: 0 14px 30px rgba(31, 107, 255, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.btn-outline {
    padding: 15px 24px;
    background: transparent;
    border: 1px solid rgba(31, 107, 255, 0.2);
    color: var(--primary);
}

.btn-outline:hover {
    background: rgba(31, 107, 255, 0.06);
    transform: translateY(-2px);
}

.btn-white {
    padding: 15px 24px;
    background: var(--white);
    color: var(--primary);
}

.btn-full {
    width: 100%;
}

.eyebrow {
    display: inline-block;
    margin-bottom: 14px;
    font-size: 0.92rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.8px;
    color: var(--primary);
}

.hero-section {
    position: relative;
    padding: 80px 0 100px;
    background:
        radial-gradient(circle at top left, rgba(127, 211, 255, 0.30), transparent 28%),
        linear-gradient(180deg, #ffffff 0%, #f6f9ff 100%);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 60px;
    min-height: calc(100vh - var(--header-height) - 50px);
}

.hero-content h1 {
    font-size: clamp(2.6rem, 5vw, 4.7rem);
    line-height: 1.05;
    margin-bottom: 20px;
    font-weight: 800;
    letter-spacing: -1.5px;
}

.hero-content p {
    max-width: 640px;
    font-size: 1.08rem;
    color: var(--text-soft);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 36px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.stat-card {
    padding: 18px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(31, 107, 255, 0.08);
    border-radius: 18px;
    box-shadow: var(--shadow-soft);
}

.stat-card strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 5px;
}

.stat-card span {
    color: var(--text-soft);
    font-size: 0.92rem;
}

.hero-visual {
    position: relative;
}

.hero-image-card {
    position: relative;
    padding: 20px;
    border-radius: 32px;
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid rgba(31, 107, 255, 0.10);
    box-shadow: var(--shadow);
}

.hero-image-card img {
    border-radius: 24px;
    width: 100%;
    object-fit: cover;
}

.floating-card {
    animation: floatY 5.5s ease-in-out infinite;
}

.hero-blur {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    pointer-events: none;
}

.hero-blur-1 {
    width: 260px;
    height: 260px;
    background: rgba(31, 107, 255, 0.16);
    right: 8%;
    top: 12%;
}

.hero-blur-2 {
    width: 220px;
    height: 220px;
    background: rgba(127, 211, 255, 0.25);
    left: 6%;
    bottom: 10%;
}

.section {
    padding: 100px 0;
}

.section-light {
    background: var(--white);
}

.section-dark {
    background: var(--bg);
    color: var(--white);
}

.section-dark .section-heading p,
.section-dark .info-card p,
.section-dark .tech-stack span {
    color: rgba(255, 255, 255, 0.74);
}

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

.section-accent {
    background: linear-gradient(135deg, #0f3aa8 0%, #1f6bff 100%);
    color: var(--white);
}

.section-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    align-items: center;
    gap: 60px;
}

.section-media img {
    border-radius: 28px;
    box-shadow: var(--shadow);
}

.section-content h2,
.section-heading h2,
.inner-hero h1,
.cta-box h2 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.section-content p,
.section-heading p,
.inner-hero p,
.founder-details p,
.contact-info p,
.cta-box p {
    color: var(--text-soft);
    font-size: 1.02rem;
}

.section-heading {
    margin-bottom: 40px;
}

.center-text {
    text-align: center;
    max-width: 860px;
    margin-inline: auto;
}

.feature-list {
    display: grid;
    gap: 14px;
    margin: 26px 0 28px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
}

.feature-item i {
    color: var(--primary);
    font-size: 1.2rem;
}

.cards-grid {
    display: grid;
    gap: 24px;
}

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

.info-card {
    padding: 28px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: var(--transition);
}

.info-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 22px 45px rgba(0, 0, 0, 0.18);
}

.info-icon {
    width: 58px;
    height: 58px;
    margin-bottom: 18px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.10);
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    color: var(--accent);
}

.info-card h3 {
    margin-bottom: 12px;
    font-size: 1.28rem;
}

.portfolio-grid-home {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.portfolio-card {
    background: var(--white);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--line);
    transition: var(--transition);
}

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

.portfolio-card img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.portfolio-card-body {
    padding: 22px;
}

.portfolio-card-body h3 {
    margin-bottom: 8px;
    font-size: 1.18rem;
}

.portfolio-card-body p {
    color: var(--text-soft);
}

.founder-box {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 34px;
    align-items: center;
    padding: 34px;
    border-radius: 28px;
    background: var(--white);
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--line);
}

.founder-photo-wrap img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 24px;
}

.founder-details h3 {
    font-size: 1.8rem;
    margin-bottom: 14px;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
}

.tech-stack span {
    padding: 12px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.10);
    font-weight: 600;
}

.cta-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    padding: 34px;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.10);
}

.cta-box p,
.section-accent .eyebrow {
    color: rgba(255, 255, 255, 0.86);
}

.inner-hero {
    padding: 90px 0 50px;
    background:
        radial-gradient(circle at top right, rgba(127, 211, 255, 0.25), transparent 22%),
        linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
}

.contact-layout {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 34px;
    align-items: start;
}

.contact-info,
.contact-form-card {
    padding: 30px;
    border-radius: 24px;
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-soft);
}

.contact-points {
    display: grid;
    gap: 18px;
    margin-top: 28px;
}

.contact-point {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.contact-point i {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    background: #edf4ff;
    color: var(--primary);
    font-size: 1.2rem;
}

.contact-point strong {
    display: block;
    margin-bottom: 4px;
}

.contact-point span {
    color: var(--text-soft);
}

.form-row {
    display: grid;
    gap: 8px;
    margin-bottom: 18px;
}

.form-row label {
    font-weight: 600;
    font-size: 0.95rem;
}

.form-row input,
.form-row textarea {
    width: 100%;
    border: 1px solid rgba(15, 23, 42, 0.10);
    border-radius: 14px;
    padding: 15px 16px;
    outline: none;
    transition: var(--transition);
    background: #fbfdff;
}

.form-row input:focus,
.form-row textarea:focus {
    border-color: rgba(31, 107, 255, 0.45);
    box-shadow: 0 0 0 4px rgba(31, 107, 255, 0.08);
    background: var(--white);
}

.form-row textarea {
    min-height: 150px;
    resize: vertical;
}

.alert {
    margin-bottom: 18px;
    padding: 14px 16px;
    border-radius: 14px;
    font-weight: 600;
}

.alert-success {
    background: rgba(21, 128, 61, 0.10);
    color: var(--success);
    border: 1px solid rgba(21, 128, 61, 0.18);
}

.alert-error {
    background: rgba(185, 28, 28, 0.09);
    color: var(--error);
    border: 1px solid rgba(185, 28, 28, 0.16);
}

.site-footer {
    background: #08101d;
    color: rgba(255, 255, 255, 0.82);
    padding-top: 70px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 28px;
    padding-bottom: 36px;
}

.footer-text {
    margin-top: 18px;
    max-width: 360px;
    color: rgba(255, 255, 255, 0.66);
}

.footer-col h4 {
    margin-bottom: 16px;
    color: var(--white);
}

.footer-links {
    list-style: none;
    display: grid;
    gap: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.72);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 14px;
}

.social-links a {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, 0.08);
    color: var(--white);
    font-size: 1.15rem;
    transition: var(--transition);
}

.social-links a:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.16);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 18px 0;
}

.footer-bottom-inner {
    display: flex;
    justify-content: center;
    text-align: center;
}

.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 1200;
    background: rgba(7, 12, 22, 0.46);
    backdrop-filter: blur(8px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.mobile-menu.open {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-inner {
    margin-left: auto;
    width: min(86%, 360px);
    height: 100%;
    background: var(--white);
    padding: 24px;
    transform: translateX(100%);
    transition: var(--transition);
}

.mobile-menu.open .mobile-menu-inner {
    transform: translateX(0);
}

.mobile-menu-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.mobile-nav {
    display: grid;
    gap: 8px;
}

.mobile-nav a {
    padding: 14px 16px;
    border-radius: 14px;
    font-weight: 600;
    color: var(--text);
    background: #f7faff;
}

.mobile-nav a.active {
    background: #edf4ff;
    color: var(--primary);
}

.reveal {
    opacity: 0;
    transform: translateY(34px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

@keyframes floatY {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-12px);
    }
}

@media (max-width: 1100px) {

    .hero-grid,
    .section-grid,
    .contact-layout,
    .footer-grid,
    .founder-box {
        grid-template-columns: 1fr;
    }

    .cards-grid-3,
    .portfolio-grid-home {
        grid-template-columns: 1fr 1fr;
    }

    .cta-box {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 860px) {

    .nav,
    .desktop-cta {
        display: none;
    }

    .menu-toggle,
    .mobile-menu-close {
        display: grid;
    }

    .hero-grid {
        min-height: auto;
        padding-top: 10px;
    }

    .hero-stats,
    .cards-grid-3,
    .portfolio-grid-home {
        grid-template-columns: 1fr;
    }

    .section,
    .hero-section {
        padding: 74px 0;
    }

    .inner-hero {
        padding: 74px 0 36px;
    }

    .site-logo span,
    .footer-logo span {
        font-size: 1rem;
    }
}

@media (max-width: 560px) {
    :root {
        --header-height: 78px;
    }

    .site-logo img,
    .footer-logo img {
        width: 46px;
        height: 46px;
    }

    .hero-content h1,
    .section-content h2,
    .section-heading h2,
    .inner-hero h1,
    .cta-box h2 {
        letter-spacing: -0.8px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .founder-box,
    .contact-info,
    .contact-form-card,
    .cta-box {
        padding: 22px;
    }
}

.tech-stack {
    padding: 80px 0;
    background: #f8fbff;
    text-align: center;
}

.tech-stack .section-title {
    margin-bottom: 40px;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
    gap: 30px;
    align-items: center;
    justify-items: center;
}

.tech-grid img {
    width: 55px;
    height: 55px;
    object-fit: contain;
    transition: 0.3s ease;
    filter: grayscale(20%);
}

.tech-grid img:hover {
    transform: translateY(-6px) scale(1.1);
    filter: grayscale(0%);
}

.section-heading {
    max-width: 750px;
    margin: 0 auto 50px auto;
    text-align: center;
}

.section-description {
    margin-top: 12px;
    color: #6b7280;
    font-size: 1rem;
    line-height: 1.7;
}

.project-single-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 32px;
    align-items: start;
}

.project-single-main,
.project-info-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 24px;
    box-shadow: var(--shadow-soft);
}

.project-single-main {
    overflow: hidden;
}

.project-single-image img {
    width: 100%;
    max-height: 460px;
    object-fit: cover;
}

.project-single-content {
    padding: 28px;
}

.project-single-content h2 {
    margin-bottom: 16px;
    font-size: 1.7rem;
}

.project-single-content p {
    color: var(--text-soft);
    line-height: 1.8;
}

.project-info-card {
    padding: 26px;
    position: sticky;
    top: 110px;
}

.project-info-card h3 {
    margin-bottom: 20px;
    font-size: 1.25rem;
}

.project-info-list {
    display: grid;
    gap: 16px;
    margin-bottom: 22px;
}

.project-info-item {
    display: grid;
    gap: 6px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line);
}

.project-info-item strong {
    font-size: 0.95rem;
}

.project-info-item span {
    color: var(--text-soft);
}

@media (max-width: 980px) {
    .project-single-layout {
        grid-template-columns: 1fr;
    }

    .project-info-card {
        position: static;
    }
}

.info-icon img {
    width: 34px;
    height: 34px;
    object-fit: contain;
}

.cards-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.info-card {
    position: relative;
    padding: 30px;
    border-radius: 24px;
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.info-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(127, 211, 255, 0.10), rgba(31, 107, 255, 0.04), transparent 70%);
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
}

.info-card::after {
    content: "";
    position: absolute;
    top: -80px;
    right: -80px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(127, 211, 255, 0.16), transparent 70%);
    opacity: 0;
    transition: opacity 0.35s ease, transform 0.35s ease;
    transform: scale(0.8);
    pointer-events: none;
}

.info-card:hover {
    transform: translateY(-10px);
    border-color: rgba(31, 107, 255, 0.16);
    box-shadow: 0 24px 50px rgba(15, 23, 42, 0.12);
}

.info-card:hover::before,
.info-card:hover::after {
    opacity: 1;
}

.info-card:hover::after {
    transform: scale(1);
}

.info-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 20px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(127, 211, 255, 0.18), rgba(31, 107, 255, 0.12));
    border: 1px solid rgba(127, 211, 255, 0.16);
    display: grid;
    place-items: center;
    font-size: 1.6rem;
    color: var(--primary);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
    transition: transform 0.35s ease, box-shadow 0.35s ease, background 0.35s ease;
}

.info-card:hover .info-icon {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 14px 28px rgba(31, 107, 255, 0.15);
    background: linear-gradient(135deg, rgba(127, 211, 255, 0.25), rgba(31, 107, 255, 0.18));
}

.info-card h3 {
    margin-bottom: 12px;
    font-size: 1.3rem;
    line-height: 1.2;
    color: var(--text);
}

.info-card p {
    color: var(--text-soft);
    font-size: 0.98rem;
    line-height: 1.75;
}

.section-dark .info-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.section-dark .info-card h3 {
    color: var(--white);
}

.section-dark .info-card p {
    color: rgba(255, 255, 255, 0.78);
}

.section-dark .info-icon {
    color: var(--accent);
}

@media (max-width: 1200px) {
    .cards-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 860px) {
    .cards-grid-4 {
        grid-template-columns: 1fr;
    }

    .info-card {
        padding: 24px;
    }

    .info-icon {
        width: 58px;
        height: 58px;
        font-size: 1.45rem;
    }
}