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

body {
    font-family: 'Inter', sans-serif;
    background: #fff;
    color: #1f2937;
    overflow-x: hidden;
}

.container {
    width: 95%;
    max-width: 1600px;
    margin: auto;
}

/* HEADER */
header {
    padding: 20px 0;
}

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

.logo {
    height: 110px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 50px;
}

.nav-links a {
    text-decoration: none;
    color: #0B3B8F;
    font-weight: 600;
    font-size: 18px;
}

.nav-toggle {
    display: none;
    width: 46px;
    height: 46px;
    border: 1px solid rgba(15, 23, 42, 0.12);
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
    cursor: pointer;
    padding: 10px;
    align-items: center;
    justify-content: center;
    transition: background .2s ease, transform .2s ease, border-color .2s ease;
}

.nav-toggle:hover {
    background: #f8fafc;
    border-color: rgba(15, 23, 42, 0.18);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #0B3B8F;
    border-radius: 999px;
    margin: 4px 0;
    transition: transform .3s ease, opacity .3s ease;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.nav-links.show {
    display: flex;
}

.login-btn {
    background: #0B3B8F;
    color: white !important;
    text-decoration: none;
    padding: 14px 30px;
    border-radius: 14px;
    font-weight: 600;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-size: 16px;
    min-height: 44px;
}

.desktop-only {
    display: inline-flex;
}

.mobile-login-link {
    display: none;
}

.mobile-login-link .login-btn {
    width: 100%;
}

.back-link {
    display: inline-block;
    margin-top: 30px;
    text-decoration: none;
    color: #0B3B8F;
    font-weight: 700;
}

/* HERO */
.hero {
    padding: 40px 0 100px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
}

.hero h1 {
    font-size: 78px;
    line-height: 1.05;
    color: #0B3B8F;
    margin-bottom: 25px;
}

.hero p {
    font-size: 24px;
    line-height: 1.8;
    color: #4b5563;
    max-width: 650px;
}

.hero-buttons {
    margin-top: 40px;
    display: flex;
    gap: 20px;
    align-items: center;
}

.play-btn {
    background: #0B3B8F;
    color: white;
    text-decoration: none;
    padding: 20px 42px;
    border-radius: 16px;
    font-weight: 700;
    font-size: 20px;
}

.google-btn img {
    height: 64px;
}

.hero-image {
    width: 125%;
    max-width: none;
    margin-left: -50px;
}

/* FEATURES */
.features {
    padding: 40px 0 100px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.features-wrapper {
    border: none;
}

.card {
    background: #ffffff;
    border: 1px solid #E5E7EB;
    border-radius: 24px;
    padding: 30px 28px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 220px;
    transition: all .25s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, .08);
}

.card:not(:last-child) {
    border-right: none;
}

.card img {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 20px;
}

.card h3 {
    color: #0B3B8F;
    margin-bottom: 15px;
    font-size: 28px;
}

.card p {
    color: #6B7280;
    line-height: 1.7;
}

/* ABOUT */
.about {
    padding: 120px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-img {
    width: 120%;
}

.about h2 {
    color: #0B3B8F;
    font-size: 60px;
    margin-bottom: 25px;
}

.about p {
    font-size: 22px;
    line-height: 1.9;
    color: #4B5563;
}

/* DOWNLOAD */
.download {
    background: #0B3B8F;
    border-radius: 30px;
    padding: 70px 90px;
    color: white;
}

.download-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.download h2 {
    font-size: 52px;
    margin-bottom: 10px;
}

.download p {
    font-size: 22px;
}

.download img {
    height: 80px;
}

/* PAGE TITLES */
.page-title {
    padding: 80px 0 30px;
}

.page-title h1 {
    font-size: 48px;
    color: #0B3B8F;
    margin-bottom: 20px;
}

.page-title p {
    font-size: 18px;
    color: #4B5563;
}

/* ABOUT PAGE CONTENT */
.about-content {
    padding-bottom: 80px;
}

.about-content h2,
.policy-content h2,
.terms-content h2 {
    font-size: 28px;
    color: #0B3B8F;
    margin-top: 30px;
    margin-bottom: 20px;
}

.about-content p,
.policy-content p,
.policy-content li,
.terms-content p,
.terms-content li {
    font-size: 18px;
    line-height: 1.9;
    color: #4B5563;
    margin-bottom: 18px;
}

.contact-content {
    padding-bottom: 80px;
}

.contact-content a {
    color: #0B3B8F;
    font-weight: 700;
    text-decoration: none;
}

.policy-content ul,
.terms-content ul {
    margin-top: 16px;
    padding-left: 24px;
}

.modal-overlay {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.65);
    padding: 24px;
    z-index: 2000;
}

.modal-overlay.open {
    display: flex;
}

.modal-dialog {
    width: min(560px, 100%);
    background: #ffffff;
    border-radius: 24px;
    padding: 32px;
    box-shadow: 0 24px 80px rgba(15, 23, 42, 0.2);
}

.modal-dialog h2 {
    margin-bottom: 18px;
    font-size: 28px;
    color: #0B3B8F;
}

.modal-dialog p {
    font-size: 18px;
    line-height: 1.8;
    color: #374151;
    margin-bottom: 28px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 16px;
    flex-wrap: wrap;
}

.modal-actions button {
    min-width: 160px;
    border: none;
    border-radius: 14px;
    padding: 14px 20px;
    font-weight: 700;
    cursor: pointer;
}

.modal-cancel {
    background: #E5E7EB;
    color: #374151;
}

.modal-proceed {
    background: #0B3B8F;
    color: #ffffff;
}

body.modal-open {
    overflow: hidden;
}

.policy-content li,
.terms-content li {
    margin-bottom: 12px;
}

/* FOOTER */
footer {
    padding: 80px 0;
    border-top: 1px solid #E5E7EB;
}

.footer-content {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-logo {
    height: 70px;
}

.footer-links {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
    margin-left: auto;
}

.footer-links a {
    text-decoration: none;
    color: #6B7280;
}

.footer-note {
    margin: 18px auto 0;
    color: #6B7280;
    font-size: 14px;
    line-height: 1.7;
    max-width: 900px;
    text-align: center;
}

.collaboration {
    padding: 60px 0;
}

.collaboration-inner {
    text-align: center;
}

.collaboration h2 {
    color: #0B3B8F;
    font-size: 36px;
    margin-bottom: 30px;
}

.collaboration-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;
}

.collaboration-logos img {
    max-height: 140px;
    width: auto;
    object-fit: contain;
}

/* MOBILE */
@media (max-width: 768px) {
    .hero-grid,
    .about-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 52px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        position: relative;
        gap: 16px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        right: 0;
        left: 0;
        background: #fff;
        border: 1px solid #E5E7EB;
        box-shadow: 0 24px 80px rgba(15, 23, 42, 0.12);
        border-radius: 24px;
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        padding: 24px;
        margin-top: 16px;
        z-index: 20;
    }

    .nav-links.show {
        display: flex;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        width: 100%;
        padding: 14px 0;
    }

    .login-btn {
        width: 100%;
        text-align: center;
    }

    .desktop-only {
        display: none;
    }

    .mobile-login-link {
        display: block;
    }

    .mobile-login-link .login-btn {
        width: 100%;
    }

    .logo {
        height: 80px;
    }

    .download-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }

    .footer-content {
        justify-content: center;
    }
}