body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: #18212b;
    background: #f4f7fb;
    line-height: 1.6;
}

html {
    scroll-behavior: smooth;
}

* {
    box-sizing: border-box;
}

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

.container {
    width: min(1150px, 92%);
    margin: 0 auto;
}

/* Header */
.site-header {
    background: linear-gradient(135deg, #0d1b2a, #1b263b);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(8px);
}

.header-container {
    min-height: 88px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
}

.logo img {
    width: 64px;
    height: 64px;
    object-fit: contain;
}

.logo-text {
    color: #ffffff;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.top-buttons {
    display: flex;
    align-items: center;
    gap: 10px;
}

.top-buttons a {
    color: #dbe4f0;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    padding: 10px 16px;
    border-radius: 999px;
    transition: all 0.25s ease;
}

.top-buttons a:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.08);
}

.top-buttons a.active-top-button {
    color: #ffffff;
    background-color: #2f80ed;
    box-shadow: 0 8px 24px rgba(47, 128, 237, 0.28);
}

/* Shared */
section {
    padding: 90px 0;
}

.section-label {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #2f80ed;
    margin-bottom: 14px;
}

.light-label {
    color: #c9defa;
}

h1, h2, h3 {
    margin-top: 0;
}

h1 {
    font-size: clamp(2.3rem, 5vw, 4.2rem);
    line-height: 1.1;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 20px;
}

.section-intro,
.hero-text {
    font-size: 1.08rem;
    color: #425466;
    max-width: 760px;
}

/* Hero */
.about-hero {
    background:
        linear-gradient(rgba(13, 27, 42, 0.7), rgba(13, 27, 42, 0.7)),
        url("../img/caspian-bg.jpg") center/cover no-repeat;
    color: #fff;
    padding: 120px 0;
}

.about-hero .hero-text {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.15rem;
}

/* Mission */
.split-section {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr;
    gap: 32px;
    align-items: stretch;
}

.text-box,
.info-card,
.feature-card,
.why-card,
.cta-box,
.social-section {
    background: #ffffff;
    border-radius: 24px;
    box-shadow: 0 14px 40px rgba(18, 38, 63, 0.08);
}

.text-box,
.info-card {
    padding: 36px;
}

.info-card {
    background: linear-gradient(135deg, #e8f1ff, #f6fbff);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* What we do */
.what-we-do-section {
    background: linear-gradient(180deg, #f7fbff 0%, #eef5fb 100%);
}

.cards-grid {
    margin-top: 34px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 28px;
}

.feature-card h3 {
    margin-bottom: 12px;
    color: #0d1b2a;
}

.bullet-box {
    margin-top: 30px;
    background: #ffffff;
    border-radius: 22px;
    padding: 26px 30px;
    box-shadow: 0 14px 40px rgba(18, 38, 63, 0.08);
}

.bullet-box ul {
    margin: 0;
    padding-left: 20px;
}

.bullet-box li {
    margin-bottom: 12px;
    font-size: 1rem;
    color: #334155;
}

/* Why it matters */
.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 34px;
}

.why-card {
    padding: 32px 26px;
    text-align: left;
}

.stat {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: #2f80ed;
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 16px;
}

/* Team */
.about-us {
    background: #f8f8f8;
    text-align: center;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.team-card {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    background: #000;
    height: 380px;
    cursor: pointer;
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.16);
}

.team-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.team-info {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) translateY(100%);
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.92), rgba(0,0,0,0.35), transparent);
    color: white;
    transition: transform 0.4s ease;
}

.team-card:hover .team-info {
    transform: translateX(-50%) translateY(0);
}

.team-info h3 {
    margin: 0 0 8px;
    font-size: 22px;
}

.team-info .role {
    font-weight: bold;
    margin-bottom: 10px;
    color: #8ec5ff;
}

.team-info p {
    margin: 0;
    font-size: 16px;
    line-height: 1.5;
}

/* Socials */
.social-section {
    margin-top: 42px;
    padding: 32px;
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 18px;
}

.social-links a {
    text-decoration: none;
    padding: 12px 20px;
    border-radius: 999px;
    background: #0d1b2a;
    color: #ffffff;
    font-weight: 600;
    transition: 0.25s ease;
}

.social-links a:hover {
    transform: translateY(-2px);
    background: #2f80ed;
}

/* CTA */
.cta-section {
    background: linear-gradient(135deg, #0d1b2a, #1e3a5f);
}

.cta-box {
    padding: 50px 36px;
    text-align: center;
    color: white;
    background: linear-gradient(135deg, rgba(47,128,237,0.18), rgba(255,255,255,0.05));
    border: 1px solid rgba(255,255,255,0.1);
}

.cta-box p {
    max-width: 720px;
    margin: 0 auto 24px;
    color: rgba(255,255,255,0.88);
}

.cta-button {
    display: inline-block;
    text-decoration: none;
    background: #2f80ed;
    color: white;
    padding: 14px 28px;
    border-radius: 999px;
    font-weight: 700;
    transition: 0.25s ease;
    box-shadow: 0 10px 28px rgba(47, 128, 237, 0.32);
}

.cta-button:hover {
    transform: translateY(-2px);
    background: #1f6fd6;
}

/* Footer */
.footer-left {
    max-width: 600px;
    width: 100%;
}

.footer {
    background: #1c1c1c;
    color: #ddd;
    padding: 50px 20px 20px;
    font-family: Arial, sans-serif;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
}

.footer-description {
    line-height: 1.6;
    font-size: 15px;
}

.footer-center h3 {
    margin-bottom: 15px;
    font-size: 20px;
}

.footer-center ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-center li {
    margin-bottom: 8px;
    font-size: 15px;
}

.footer-right {
    text-align: right;
}

.made-by {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
}

.made-by img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.made-by p {
    margin: 0;
    font-size: 16px;
}

.founded {
    margin-top: 10px;
    font-size: 12px;
    color: #aaa;
}

.footer-bottom {
    border-top: 1px solid #333;
    margin-top: 30px;
    padding-top: 15px;
    text-align: center;
    font-size: 14px;
    color: #aaa;
}

/* Responsive */
@media (max-width: 992px) {
    .split-section,
    .cards-grid,
    .why-grid,
    .team-grid,
    .footer-container {
        grid-template-columns: 1fr 1fr;
    }

    .header-container {
        flex-direction: column;
        align-items: flex-start;
        padding: 18px 0;
    }

    .top-buttons {
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .split-section,
    .cards-grid,
    .why-grid,
    .team-grid,
    .footer-container {
        grid-template-columns: 1fr;
    }

    .footer-right,
    .footer-container {
        text-align: center;
    }

    .made-by {
        justify-content: center;
    }

    .social-links {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 600px) {
    .logo-text {
        font-size: 1.05rem;
    }

    .top-buttons a {
        font-size: 0.95rem;
        padding: 9px 14px;
    }

    section {
        padding: 70px 0;
    }

    .text-box,
    .info-card,
    .feature-card,
    .why-card,
    .social-section,
    .cta-box {
        padding: 24px;
    }
}