:root {
    --primary: #3B82F6;
    --primary-light: #60A5FA;
    --primary-dark: #2563EB;
    --secondary: #6366F1;
    --dark: #0F172A;
    --light: #F8FAFC;
    --white: #FFFFFF;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --glass: rgba(255, 255, 255, 0.7);
    --shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

html {
    overflow-x: hidden;
    max-width: 100%;
}

body {
    background-color: var(--light);
    color: var(--text-main);
    overflow-x: hidden;
    max-width: 100%;
    line-height: 1.5;
}

img {
    max-width: 100%;
}

/* Utility Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    font-size: 15px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.39);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.45);
}

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

.btn-dark:hover {
    transform: translateY(-2px);
    background: #000;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 20px;
    text-align: center;
}

.section-title span {
    color: var(--primary);
}

/* Navbar */
nav {
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(10px);
}

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

.logo-box {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-box img {
    height: 40px;
}

.logo-text {
    font-size: 22px;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -0.5px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background 0.2s ease;
}

.nav-toggle:hover {
    background: rgba(15, 23, 42, 0.06);
}

.nav-toggle-bar {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

nav.nav-open .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

nav.nav-open .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}

nav.nav-open .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(141.61deg, #FFFFFF 41.6%, #FFFFFF 41.6%, #FFFFFF 45.32%, #ECFCF7 48.02%, #B4DDFF 62.6%, #3EA2BF 93.26%);
    position: relative;
    overflow: hidden;
    min-height: 90vh;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-content h1 {
    font-size: 2.85rem;
    line-height: 1.3;
    font-weight: 400;
    margin-bottom: 40px;
    color: #000000;
    letter-spacing: -0.3px;
}

.hero-content h1 .hero-highlight {
    display: block;
    font-size: 4rem;
    font-weight: 700;
    color: #1A4C8B;
    margin-top: 8px;
    line-height: 1.15;
}

.btn-hero {
    background: #4491CA;
    color: #FFFFFF;
    border: 2px solid #FFFFFF;
    box-shadow: 0 4px 16px rgba(68, 145, 202, 0.35);
    padding: 14px 34px;
    font-size: 17px;
}

.btn-hero:hover {
    background: #3a7db0;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(68, 145, 202, 0.45);
}

.hero-image-box {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: visible;
}

.hero-circles {
    position: relative;
    width: 100%;
    max-width: 1080px;
    aspect-ratio: 680 / 440;
    isolation: isolate;
    overflow: visible;
    margin: 0 auto;
}

@media (min-width: 1025px) {
    .hero-circles {
        width: 155%;
        max-width: 1080px;
    }
}

.hero-circle {
    position: absolute;
    border-radius: 50%;
    overflow: hidden;
}

.hero-circle img {
    width: 89%;
    height: 85%;
    max-width: none;
    object-fit: cover;
    display: block;
}

.hero-circle-left {
    width: 62%;
    aspect-ratio: 1;
    top: 0;
    left: 0;
    z-index: 3;
}

.hero-circle-right {
    width: 76%;
    aspect-ratio: 1;
    top: 0;
    left: 39%;
    z-index: 1;
}

/* About Us */
.about {
    padding: 60px 0;
    background-color: #FFFFFF;
    background-image: url("../assets/images/landing_pages/aboutBg.png");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: 100% 100%;
    text-align: center;
    position: relative;
}

.about-content {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}

.about-title {
    font-size: 2.65rem;
    font-weight: 400;
    color: var(--dark);
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.about-title strong {
    font-weight: 700;
}

.about-content p {
    color: #656565;
    font-size: 1.1rem;
    margin-bottom: 14px;
    line-height: 1.7;
}

.about .btn-waitlist {
    margin-top: 18px;
}

/* Why SPVN */
.why {
    padding: 80px 0;
    background: linear-gradient(105.99deg, #8CC7D8 12.22%, #4687D0 54.33%, #3DA5BD 96.44%);
}

.why-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #FFFFFF;
    text-align: center;
    margin-bottom: 0;
    letter-spacing: -0.5px;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
    margin-top: 45px;
}

.feature-card {
    background: #FFFFFF;
    padding: 28px 20px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    border: none;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.14);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    background: none;
}

.feature-icon img {
    width: 44px;
    height: 44px;
    object-fit: contain;
}

.feature-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #000000;
    line-height: 1.35;
}

.feature-card p {
    font-size: 13px;
    color: #656565;
    line-height: 1.55;
}

/* How it Works */
.how {
    padding: 80px 0;
    background: #FFFFFF;
    position: relative;
    overflow: hidden;
}

.how-deco {
    position: absolute;
    width: 220px;
    max-width: none;
    height: auto;
    opacity: 0.32;
    filter: grayscale(1) brightness(1.6);
    pointer-events: none;
    z-index: 2;
}

.how-deco-tl {
    top: 24px;
    left: 24px;
}

.how-deco-tr {
    top: 24px;
    right: 24px;
}

.how-deco-bl {
    bottom: 24px;
    left: 24px;
}

.how-deco-br {
    bottom: 24px;
    right: 24px;
}

.how .container {
    position: relative;
    z-index: 3;
}

.how-title {
    font-size: 2.5rem;
    font-weight: 400;
    color: #000000;
    text-align: center;
    margin-bottom: 0;
    letter-spacing: -0.5px;
}

.how-title strong {
    font-weight: 700;
}

.how-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    margin-top: 45px;
}

.how-card {
    background: linear-gradient(270.76deg, #E9F3FF 13.27%, #4687D0 103.73%);
    border-radius: 24px;
    padding: 28px 26px;
    display: flex;
    align-items: center;
    gap: 22px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 8px 24px rgba(70, 135, 208, 0.15);
}

.how-card img {
    width: 165px;
    flex-shrink: 0;
    filter: drop-shadow(0 12px 20px rgba(0, 0, 0, 0.12));
}

.how-info h3 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 14px;
    color: #000000;
}

.how-list {
    list-style: none;
    counter-reset: how-step;
}

.how-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 10px;
    font-size: 17px;
    color: #333333;
    font-weight: 400;
    line-height: 1.55;
    counter-increment: how-step;
}

.how-list li::before {
    content: counter(how-step) '.';
    position: absolute;
    left: 0;
    color: #000000;
    font-weight: 600;
}

/* App Promo */
.app-promo {
    padding: 100px 0 0;
    background: #FFFFFF;
    color: var(--text-main);
    position: relative;
    overflow: visible;
    z-index: 2;
}

.app-promo::before,
.app-promo::after {
    content: '';
    position: absolute;
    top: 0;
    width: 80px;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.app-promo::before {
    left: 0;
    background: linear-gradient(to right,
            rgba(70, 135, 208, 0.45) 0%,
            rgba(140, 199, 216, 0.18) 45%,
            rgba(255, 255, 255, 0) 100%);
}

.app-promo::after {
    right: 0;
    background: linear-gradient(to left,
            rgba(70, 135, 208, 0.45) 0%,
            rgba(140, 199, 216, 0.18) 45%,
            rgba(255, 255, 255, 0) 100%);
}

.app-content {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.app-text h2 {
    font-size: 3.5rem;
    font-weight: 400;
    color: #000000;
    margin-bottom: 24px;
    line-height: 1.1;
}

.app-text h2 b {
    font-weight: 800;
}

.app-text p {
    font-size: 1.2rem;
    color: #656565;
    margin-bottom: 40px;
    max-width: 550px;
    line-height: 1.6;
}

.app-badges {
    display: flex;
    gap: 24px;
}

.app-badge-item {
    text-align: center;
}

.app-badges img {
    height: 54px;
    cursor: pointer;
    transition: transform 0.3s;
    margin-bottom: 8px;
}

.app-badges img:hover {
    transform: translateY(-5px);
}

.coming-soon-text {
    font-size: 11px;
    color: #888888;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.app-images {
    position: relative;
    display: flex;
    justify-content: flex-end;
    z-index: 10;
    margin-bottom: -160px;
    pointer-events: none;
    max-width: 100%;
}

.app-images img {
    width: 100%;
    max-width: 740px;
    height: auto;
    filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.18));
}

/* Early Access Section */
.early-access {
    padding: 200px 0 120px;
    background: linear-gradient(100.49deg, #8CC7D8 5.58%, #4687D0 57.99%, #3DA5BD 110.39%);
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.early-access .section-title {
    color: var(--white);
    margin-bottom: 16px;
    font-weight: 400;
    font-size: 3.5rem;
    position: relative;
    z-index: 3;
}

.early-access .section-title b {
    font-weight: 800;
}

.early-access p {
    font-size: 1.2rem;
    margin-bottom: 48px;
    opacity: 0.9;
    position: relative;
    z-index: 3;
}

.access-card {
    background: var(--white);
    padding: 60px;
    border-radius: 40px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 3;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    text-align: left;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.span-2 {
    grid-column: span 2;
}

.form-group label {
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
}

.form-control {
    background: #F8FAFC;
    border: 1px solid #E2E8F0;
    padding: 14px 18px;
    border-radius: 14px;
    font-size: 14px;
    color: var(--text-main);
    transition: all 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.full-width {
    grid-column: span 3;
}

.btn-waitlist {
    background: linear-gradient(92.68deg, #8CC7D8 9.07%, #4687D0 51.08%, #3DA5BD 93.08%);
    color: #FFFFFF;
    padding: 16px 48px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 10px 20px rgba(70, 135, 208, 0.3);
}

.btn-waitlist:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(70, 135, 208, 0.4);
}

.early-access .btn-waitlist {
    background: #467ABB;
    box-shadow: 0 10px 20px rgba(70, 122, 187, 0.35);
}

.early-access .btn-waitlist:hover {
    background: #3d6ba5;
    box-shadow: 0 15px 30px rgba(70, 122, 187, 0.45);
}

/* Footer */
footer {
    padding: 60px 0 40px;
    background: #FFFFFF;
    text-align: center;
}

.footer-brand {
    margin-bottom: 24px;
}

.footer-logo-link {
    display: inline-block;
    text-decoration: none;
    margin-bottom: 12px;
}

.footer-logo-link img {
    height: 48px;
    width: auto;
}

.footer-name {
    font-size: 1.75rem;
    font-weight: 700;
    color: #000000;
    letter-spacing: -0.5px;
}

.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin-bottom: 28px;
}

.footer-links a {
    text-decoration: none;
    color: #333333;
    font-weight: 400;
    font-size: 15px;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #467ABB;
}

.footer-divider {
    border: none;
    border-top: 1px solid #AAAAAA;
    max-width: 900px;
    margin: 0 auto 24px;
}

.copyright {
    color: #94A3B8;
    font-size: 13px;
    font-weight: 400;
}

/* Responsive */
@media (max-width: 1024px) {
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .app-images img {
        width: 100%;
        max-width: 620px;
    }

    .hero {
        min-height: auto;
        padding: 130px 0 80px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 52px;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2.25rem;
    }

    .hero-content h1 .hero-highlight {
        font-size: 2.9rem;
    }

    .hero-content .btn-hero {
        margin: 0 auto;
    }

    .hero-circles {
        max-width: 920px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    nav {
        padding: 14px 0;
    }

    .logo-box img {
        height: 34px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-actions {
        position: fixed;
        top: 62px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        padding: 16px 20px 20px;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(12px);
        box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
        transform: translateY(-10px);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
    }

    nav.nav-open .nav-actions {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    .nav-actions .btn {
        width: 100%;
        padding: 12px 20px;
        font-size: 15px;
    }

    .hero-grid,
    .how-grid,
    .app-content,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .full-width,
    .span-2 {
        grid-column: span 1;
    }

    .hero {
        padding: 110px 0 60px;
    }

    .hero-content h1 {
        font-size: 1.85rem;
        margin-bottom: 30px;
    }

    .hero-content h1 .hero-highlight {
        font-size: 2.35rem;
    }

    .hero-circles {
        max-width: 740px;
    }

    .app-promo {
        padding: 70px 0 0;
    }

    .app-text h2 {
        font-size: 2.4rem;
    }

    .app-images {
        justify-content: center;
        margin-bottom: -80px;
    }

    .app-images img {
        width: 100%;
        max-width: 460px;
    }

    .early-access {
        padding: 140px 0 80px;
    }

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

    .about {
        padding: 50px 0;
    }

    .about-title {
        font-size: 2.15rem;
        margin-bottom: 20px;
    }

    .about-content p {
        font-size: 1.05rem;
    }

    .why {
        padding: 60px 0;
    }

    .why-title {
        font-size: 2rem;
    }

    .why-grid {
        margin-top: 32px;
        gap: 18px;
    }

    .how {
        padding: 60px 0;
    }

    .how-title {
        font-size: 2rem;
    }

    .how-grid {
        margin-top: 32px;
        gap: 24px;
    }

    .how-card {
        padding: 24px 22px;
        gap: 18px;
    }

    .how-card img {
        width: 150px;
    }

    .how-info h3 {
        font-size: 22px;
        margin-bottom: 12px;
    }

    .how-list li {
        font-size: 15px;
        margin-bottom: 8px;
    }

    .how-deco {
        width: 150px;
        opacity: 0.28;
    }

    .how-deco-tl {
        top: 14px;
        left: 14px;
    }

    .how-deco-tr {
        top: 14px;
        right: 14px;
    }

    .how-deco-bl {
        bottom: 14px;
        left: 14px;
    }

    .how-deco-br {
        bottom: 14px;
        right: 14px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    nav {
        padding: 12px 0;
    }

    .logo-box img {
        height: 30px;
    }

    .nav-content {
        gap: 10px;
    }

    .nav-actions {
        top: 56px;
        padding: 14px 16px 18px;
    }

    .hero {
        padding: 96px 0 48px;
    }

    .hero-grid {
        gap: 36px;
    }

    .hero-content h1 {
        font-size: 1.5rem;
        margin-bottom: 26px;
    }

    .hero-content h1 .hero-highlight {
        font-size: 1.95rem;
    }

    .btn-hero {
        padding: 12px 28px;
        font-size: 15px;
    }

    .hero-circles {
        max-width: 560px;
    }

    .about {
        padding: 40px 0;
    }

    .about-title {
        font-size: 1.85rem;
        margin-bottom: 16px;
    }

    .about-content p {
        font-size: 1rem;
        line-height: 1.65;
        margin-bottom: 12px;
    }

    .btn-waitlist {
        padding: 12px 28px;
        font-size: 15px;
    }

    .why {
        padding: 50px 0;
    }

    .why-title {
        font-size: 1.75rem;
    }

    .why-grid {
        grid-template-columns: 1fr;
        margin-top: 28px;
    }

    .feature-card {
        padding: 24px 18px;
    }

    .how {
        padding: 50px 0;
    }

    .how-title {
        font-size: 1.75rem;
    }

    .how-card {
        flex-direction: column;
        text-align: center;
        padding: 22px 18px;
    }

    .how-card img {
        width: 145px;
    }

    .how-info h3 {
        font-size: 20px;
        margin-bottom: 10px;
    }

    .how-list li {
        text-align: left;
        font-size: 14px;
        margin-bottom: 8px;
    }

    .how-deco {
        width: 110px;
        opacity: 0.24;
    }

    .how-deco-tl {
        top: 10px;
        left: 10px;
    }

    .how-deco-tr {
        top: 10px;
        right: 10px;
    }

    .how-deco-bl {
        bottom: 10px;
        left: 10px;
    }

    .how-deco-br {
        bottom: 10px;
        right: 10px;
    }

    .app-images {
        margin-bottom: -50px;
    }

    .app-badges {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }

    .early-access {
        padding: 120px 0 60px;
    }

    .early-access .section-title {
        font-size: 2rem;
    }

    .access-card {
        padding: 32px 20px;
    }
}

@media (max-width: 360px) {
    .hero-circles {
        max-width: 480px;
    }
}