/* ===== CSS Variables ===== */
:root {
    --color-green: #0bf88b;
    --color-mint: #cde5db;
    --color-dark: #0f1727;
    --color-card: #1a2535;
    --color-border: #2d3a4f;
    --color-text-muted: #a0aec0;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-dark);
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Background Effects ===== */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at top, #1a2535 0%, #0f1727 70%);
    pointer-events: none;
    z-index: -3;
}

.bg-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(11, 248, 139, 0.1) 0%, transparent 50%, rgba(205, 229, 219, 0.05) 100%);
    pointer-events: none;
    z-index: -2;
}

.floating-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: -1;
    display: none;
}

@media (min-width: 640px) {
    .floating-orb {
        display: block;
    }
}

.orb-1 {
    top: 80px;
    left: 40px;
    width: 280px;
    height: 280px;
    background: rgba(11, 248, 139, 0.1);
}

.orb-2 {
    bottom: 80px;
    right: 40px;
    width: 380px;
    height: 380px;
    background: rgba(205, 229, 219, 0.05);
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

@media (min-width: 640px) {
    .container {
        padding: 0 24px;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 32px;
    }
}

/* ===== Navigation ===== */
.navbar {
    position: relative;
    z-index: 100;
    padding: 12px 0;
}

@media (min-width: 640px) {
    .navbar {
        padding: 16px 0;
    }
}

@media (min-width: 1024px) {
    .navbar {
        padding: 24px 0;
    }
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

@media (min-width: 640px) {
    .nav-container {
        padding: 0 24px;
    }
}

.logo img {
    height: 24px;
    width: auto;
}

@media (min-width: 480px) {
    .logo img {
        height: 28px;
    }
}

@media (min-width: 640px) {
    .logo img {
        height: 32px;
    }
}

@media (min-width: 1024px) {
    .logo img {
        height: 40px;
    }
}

.nav-links {
    display: none;
    gap: 32px;
}

@media (min-width: 1024px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    color: var(--color-mint);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--color-green);
}

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

.nav-cta {
    display: none;
    align-items: center;
    gap: 8px;
    background: var(--color-green);
    color: var(--color-dark);
    padding: 8px 16px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 12px;
    transition: all 0.3s;
}

@media (min-width: 480px) {
    .nav-cta {
        display: flex;
        padding: 10px 20px;
        font-size: 14px;
    }
}

.nav-cta:hover {
    background: rgba(11, 248, 139, 0.9);
    box-shadow: 0 4px 20px rgba(11, 248, 139, 0.3);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--color-mint);
    transition: color 0.3s;
}

@media (min-width: 1024px) {
    .mobile-menu-btn {
        display: none;
    }
}

.mobile-menu-btn:hover {
    color: var(--color-green);
}

.mobile-menu-btn .close-icon {
    display: none;
}

.mobile-menu-btn.active .menu-icon {
    display: none;
}

.mobile-menu-btn.active .close-icon {
    display: block;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 23, 39, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 99;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu a {
    display: block;
    color: var(--color-mint);
    text-decoration: none;
    font-size: 14px;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(45, 58, 79, 0.5);
    transition: color 0.3s, background 0.3s;
}

.mobile-menu a:hover {
    color: var(--color-green);
    background: rgba(11, 248, 139, 0.05);
}

.mobile-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--color-green) !important;
    color: var(--color-dark) !important;
    font-weight: 600;
    margin-top: 8px;
    border-radius: 50px;
    margin: 8px 16px 16px;
    padding: 12px !important;
}

@media (min-width: 480px) {
    .mobile-cta {
        display: none;
    }
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    z-index: 10;
    padding: 24px 0 48px;
}

@media (min-width: 640px) {
    .hero {
        padding: 48px 0 80px;
    }
}

@media (min-width: 1024px) {
    .hero {
        padding: 80px 0 100px;
    }
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

@media (min-width: 1024px) {
    .hero-content {
        flex-direction: row;
        align-items: center;
        gap: 64px;
    }
}

.hero-text {
    flex: 1;
    text-align: center;
}

@media (min-width: 1024px) {
    .hero-text {
        text-align: left;
    }
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 50px;
    background: rgba(11, 248, 139, 0.1);
    border: 1px solid rgba(11, 248, 139, 0.2);
    margin-bottom: 16px;
}

@media (min-width: 640px) {
    .badge {
        gap: 8px;
        padding: 8px 16px;
        margin-bottom: 24px;
    }
}

.badge svg {
    color: var(--color-green);
    width: 12px;
    height: 12px;
}

@media (min-width: 640px) {
    .badge svg {
        width: 14px;
        height: 14px;
    }
}

.badge span {
    color: var(--color-green);
    font-size: 10px;
    font-weight: 600;
}

@media (min-width: 640px) {
    .badge span {
        font-size: 12px;
    }
}

@media (min-width: 1024px) {
    .badge span {
        font-size: 14px;
    }
}

.hero h1 {
    font-size: 24px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
}

@media (min-width: 480px) {
    .hero h1 {
        font-size: 30px;
    }
}

@media (min-width: 640px) {
    .hero h1 {
        font-size: 36px;
        margin-bottom: 20px;
    }
}

@media (min-width: 1024px) {
    .hero h1 {
        font-size: 48px;
        margin-bottom: 24px;
    }
}

@media (min-width: 1280px) {
    .hero h1 {
        font-size: 60px;
    }
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-green), var(--color-mint));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    color: var(--color-text-muted);
    font-size: 14px;
    max-width: 100%;
    margin: 0 auto 20px;
    line-height: 1.6;
}

@media (min-width: 640px) {
    .hero-description {
        font-size: 16px;
        max-width: 480px;
        margin-bottom: 28px;
    }
}

@media (min-width: 1024px) {
    .hero-description {
        font-size: 18px;
        max-width: 520px;
        margin: 0 0 32px;
    }
}

/* ===== Buttons ===== */
.hero-buttons {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

@media (min-width: 1024px) {
    .hero-buttons {
        justify-content: flex-start;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-green);
    color: var(--color-dark);
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 13px;
    animation: pulse-glow 2s ease-in-out infinite;
}

@media (min-width: 640px) {
    .btn-primary {
        padding: 16px 28px;
        border-radius: 16px;
        font-size: 15px;
        gap: 12px;
    }
}

@media (min-width: 1024px) {
    .btn-primary {
        padding: 16px 32px;
        font-size: 16px;
    }
}

.btn-primary:hover {
    background: rgba(11, 248, 139, 0.9);
    box-shadow: 0 8px 30px rgba(11, 248, 139, 0.4);
}

.btn-small {
    font-size: 9px;
    opacity: 0.7;
    display: block;
}

@media (min-width: 640px) {
    .btn-small {
        font-size: 11px;
    }
}

.btn-main {
    font-size: 14px;
    display: block;
}

@media (min-width: 640px) {
    .btn-main {
        font-size: 16px;
    }
}

.btn-ghost {
    color: var(--color-mint);
    font-size: 14px;
}

.btn-ghost:hover {
    color: var(--color-green);
}

.btn-dark {
    background: var(--color-dark);
    color: #fff;
    padding: 12px 24px;
    border-radius: 12px;
    font-size: 14px;
}

@media (min-width: 640px) {
    .btn-dark {
        padding: 16px 32px;
        border-radius: 16px;
        font-size: 16px;
    }
}

.btn-dark:hover {
    background: rgba(15, 23, 39, 0.9);
}

/* ===== Stats ===== */
.stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

@media (min-width: 640px) {
    .stats {
        gap: 24px;
        margin-top: 40px;
        padding-top: 32px;
    }
}

@media (min-width: 1024px) {
    .stats {
        justify-content: flex-start;
        gap: 32px;
    }
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-green);
}

@media (min-width: 640px) {
    .stat-number {
        font-size: 24px;
    }
}

@media (min-width: 1024px) {
    .stat-number {
        font-size: 28px;
    }
}

.stat-label {
    font-size: 10px;
    color: var(--color-text-muted);
}

@media (min-width: 640px) {
    .stat-label {
        font-size: 12px;
    }
}

@media (min-width: 1024px) {
    .stat-label {
        font-size: 14px;
    }
}

.stat-divider {
    width: 1px;
    height: 32px;
    background: var(--color-border);
}

@media (min-width: 640px) {
    .stat-divider {
        height: 40px;
    }
}

@media (min-width: 1024px) {
    .stat-divider {
        height: 48px;
    }
}

/* ===== Phone Mockup ===== */
.hero-phone {
    flex-shrink: 0;
    display: flex;
    justify-content: center;
}

@media (min-width: 1024px) {
    .hero-phone {
        justify-content: flex-end;
    }
}

.phone-mockup {
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 25px 50px rgba(0, 0, 0, 0.5));
}

.phone-frame {
    position: relative;
    width: 200px;
    height: 420px;
}

@media (min-width: 480px) {
    .phone-frame {
        width: 220px;
        height: 460px;
    }
}

@media (min-width: 640px) {
    .phone-frame {
        width: 240px;
        height: 500px;
    }
}

@media (min-width: 768px) {
    .phone-frame {
        width: 260px;
        height: 540px;
    }
}

@media (min-width: 1024px) {
    .phone-frame {
        width: 280px;
        height: 580px;
    }
}

@media (min-width: 1280px) {
    .phone-frame {
        width: 300px;
        height: 620px;
    }
}

.phone-body {
    position: absolute;
    inset: 0;
    border-radius: 32px;
    background: linear-gradient(135deg, #4a5568 0%, #2d3748 50%, #1a202c 100%);
    padding: 3px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

@media (min-width: 1024px) {
    .phone-body {
        border-radius: 40px;
    }
}

.phone-body::before {
    content: '';
    position: absolute;
    inset: 3px;
    border-radius: 30px;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 50%, #0f172a 100%);
}

@media (min-width: 1024px) {
    .phone-body::before {
        border-radius: 38px;
    }
}

.phone-screen {
    position: absolute;
    inset: 8px;
    border-radius: 28px;
    background: #000;
    overflow: hidden;
    z-index: 1;
}

@media (min-width: 1024px) {
    .phone-screen {
        inset: 9px;
        border-radius: 35px;
    }
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
}

/* Punch-hole camera (Samsung style) */
.punch-hole-camera {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

@media (min-width: 1024px) {
    .punch-hole-camera {
        top: 12px;
    }
}

.camera-outer {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #000;
    border: 2px solid #1a1a1a;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (min-width: 1024px) {
    .camera-outer {
        width: 12px;
        height: 12px;
    }
}

.camera-inner {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #2a2a2a;
}

@media (min-width: 1024px) {
    .camera-inner {
        width: 6px;
        height: 6px;
    }
}

/* S Pen slot indicator */
.spen-slot {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 3px;
    border-radius: 2px;
    background: #1a1a1a;
    z-index: 1;
}

@media (min-width: 1024px) {
    .spen-slot {
        bottom: 12px;
        width: 64px;
        height: 4px;
    }
}

/* Side buttons */
.side-button {
    position: absolute;
    right: -2px;
    background: linear-gradient(90deg, #4a5568, #2d3748);
    border-radius: 0 2px 2px 0;
}

.btn-1 {
    top: 85px;
    width: 2px;
    height: 28px;
}

@media (min-width: 640px) {
    .btn-1 {
        top: 100px;
        height: 30px;
    }
}

@media (min-width: 1024px) {
    .btn-1 {
        top: 120px;
        width: 3px;
        height: 35px;
    }
}

.btn-2 {
    top: 120px;
    width: 2px;
    height: 40px;
}

@media (min-width: 640px) {
    .btn-2 {
        top: 140px;
        height: 45px;
    }
}

@media (min-width: 1024px) {
    .btn-2 {
        top: 165px;
        width: 3px;
        height: 55px;
    }
}

.btn-3 {
    top: 170px;
    width: 2px;
    height: 40px;
}

@media (min-width: 640px) {
    .btn-3 {
        top: 195px;
        height: 45px;
    }
}

@media (min-width: 1024px) {
    .btn-3 {
        top: 230px;
        width: 3px;
        height: 55px;
    }
}

/* Screen reflection overlay */
.screen-reflection {
    position: absolute;
    inset: 8px;
    border-radius: 28px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%, transparent 100%);
    pointer-events: none;
    z-index: 2;
}

@media (min-width: 1024px) {
    .screen-reflection {
        inset: 9px;
        border-radius: 35px;
    }
}

.glass-reflection {
    position: absolute;
    inset: 0;
    border-radius: 32px;
    background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.05) 50%, transparent 100%);
    pointer-events: none;
    z-index: 3;
}

@media (min-width: 1024px) {
    .glass-reflection {
        border-radius: 40px;
    }
}

/* Phone shadow */
.phone-shadow {
    position: absolute;
    bottom: -24px;
    left: 50%;
    transform: translateX(-50%);
    width: 140px;
    height: 16px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 50%;
    filter: blur(10px);
}

@media (min-width: 1024px) {
    .phone-shadow {
        bottom: -32px;
        width: 200px;
        height: 24px;
        filter: blur(12px);
    }
}

/* ===== Features Section ===== */
.features {
    position: relative;
    z-index: 10;
    padding: 48px 0;
    background: var(--color-dark);
}

@media (min-width: 640px) {
    .features {
        padding: 64px 0;
    }
}

@media (min-width: 1024px) {
    .features {
        padding: 96px 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: 32px;
}

@media (min-width: 640px) {
    .section-header {
        margin-bottom: 48px;
    }
}

@media (min-width: 1024px) {
    .section-header {
        margin-bottom: 64px;
    }
}

.section-header h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

@media (min-width: 640px) {
    .section-header h2 {
        font-size: 32px;
        margin-bottom: 16px;
    }
}

@media (min-width: 1024px) {
    .section-header h2 {
        font-size: 40px;
    }
}

@media (min-width: 1280px) {
    .section-header h2 {
        font-size: 48px;
    }
}

.section-header .highlight {
    color: var(--color-green);
}

.section-header p {
    color: var(--color-text-muted);
    font-size: 14px;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 16px;
}

@media (min-width: 640px) {
    .section-header p {
        font-size: 16px;
        max-width: 500px;
    }
}

@media (min-width: 1024px) {
    .section-header p {
        font-size: 18px;
        max-width: 600px;
    }
}

.features-grid {
    display: grid;
    gap: 16px;
}

@media (min-width: 640px) {
    .features-grid {
        gap: 24px;
    }
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        gap: 32px;
    }
}

.feature-card {
    background: rgba(26, 37, 53, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 20px;
    border: 1px solid var(--color-border);
    transition: all 0.3s;
}

@media (min-width: 640px) {
    .feature-card {
        padding: 24px;
        border-radius: 16px;
    }
}

@media (min-width: 1024px) {
    .feature-card {
        padding: 32px;
        border-radius: 16px;
    }
}

.feature-card:hover {
    border-color: rgba(11, 248, 139, 0.3);
    box-shadow: 0 10px 40px rgba(11, 248, 139, 0.05);
}

.feature-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--color-green), rgba(11, 248, 139, 0.7));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

@media (min-width: 640px) {
    .feature-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        margin-bottom: 20px;
    }
}

@media (min-width: 1024px) {
    .feature-icon {
        width: 56px;
        height: 56px;
        margin-bottom: 20px;
    }
}

.feature-icon svg {
    color: var(--color-dark);
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

@media (min-width: 640px) {
    .feature-card h3 {
        font-size: 20px;
        margin-bottom: 10px;
    }
}

@media (min-width: 1024px) {
    .feature-card h3 {
        font-size: 24px;
        margin-bottom: 12px;
    }
}

.feature-card > p {
    color: var(--color-text-muted);
    margin-bottom: 16px;
    font-size: 13px;
}

@media (min-width: 640px) {
    .feature-card > p {
        margin-bottom: 20px;
        font-size: 14px;
    }
}

@media (min-width: 1024px) {
    .feature-card > p {
        font-size: 16px;
    }
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

@media (min-width: 640px) {
    .feature-list {
        gap: 12px;
    }
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

@media (min-width: 640px) {
    .feature-list li {
        gap: 12px;
    }
}

.check-icon {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: rgba(11, 248, 139, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

@media (min-width: 640px) {
    .check-icon {
        width: 18px;
        height: 18px;
        margin-top: 1px;
    }
}

@media (min-width: 1024px) {
    .check-icon {
        width: 20px;
        height: 20px;
    }
}

.check-icon svg {
    color: var(--color-green);
}

.feature-list span {
    color: var(--color-mint);
    font-size: 12px;
}

@media (min-width: 640px) {
    .feature-list span {
        font-size: 13px;
    }
}

@media (min-width: 1024px) {
    .feature-list span {
        font-size: 14px;
    }
}

/* ===== How It Works Section ===== */
.how-it-works {
    position: relative;
    z-index: 10;
    padding: 48px 0;
    background: linear-gradient(180deg, var(--color-dark) 0%, var(--color-card) 100%);
}

@media (min-width: 640px) {
    .how-it-works {
        padding: 64px 0;
    }
}

@media (min-width: 1024px) {
    .how-it-works {
        padding: 96px 0;
    }
}

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

@media (min-width: 640px) {
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
    }
}

@media (min-width: 1024px) {
    .steps-grid {
        gap: 48px;
    }
}

.step-card {
    text-align: center;
}

.step-number {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--color-green), rgba(11, 248, 139, 0.7));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    box-shadow: 0 10px 30px rgba(11, 248, 139, 0.2);
    transition: transform 0.3s;
}

@media (min-width: 640px) {
    .step-number {
        width: 72px;
        height: 72px;
        border-radius: 16px;
        font-size: 22px;
        margin-bottom: 18px;
    }
}

@media (min-width: 1024px) {
    .step-number {
        width: 80px;
        height: 80px;
        border-radius: 16px;
        font-size: 24px;
        margin-bottom: 20px;
    }
}

.step-card:hover .step-number {
    transform: scale(1.1);
}

.step-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

@media (min-width: 640px) {
    .step-card h3 {
        font-size: 18px;
        margin-bottom: 8px;
    }
}

@media (min-width: 1024px) {
    .step-card h3 {
        font-size: 20px;
        margin-bottom: 8px;
    }
}

.step-card p {
    color: var(--color-text-muted);
    font-size: 12px;
}

@media (min-width: 640px) {
    .step-card p {
        font-size: 13px;
    }
}

@media (min-width: 1024px) {
    .step-card p {
        font-size: 14px;
    }
}

/* Features highlight */
.features-highlight {
    display: grid;
    gap: 12px;
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
}

@media (min-width: 640px) {
    .features-highlight {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
        margin-top: 48px;
        padding-top: 48px;
    }
}

@media (min-width: 1024px) {
    .features-highlight {
        gap: 24px;
        margin-top: 64px;
        padding-top: 48px;
    }
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 10px;
    background: rgba(26, 37, 53, 0.5);
    transition: background 0.3s;
}

@media (min-width: 640px) {
    .highlight-item {
        gap: 14px;
        padding: 14px;
    }
}

@media (min-width: 1024px) {
    .highlight-item {
        gap: 16px;
        padding: 16px;
        border-radius: 12px;
    }
}

.highlight-item:hover {
    background: var(--color-card);
}

.highlight-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(11, 248, 139, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

@media (min-width: 640px) {
    .highlight-icon {
        width: 44px;
        height: 44px;
    }
}

@media (min-width: 1024px) {
    .highlight-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
    }
}

.highlight-icon svg {
    color: var(--color-green);
}

.highlight-title {
    font-weight: 600;
    margin-bottom: 2px;
    font-size: 13px;
}

@media (min-width: 640px) {
    .highlight-title {
        font-size: 14px;
    }
}

.highlight-desc {
    color: var(--color-text-muted);
    font-size: 11px;
}

@media (min-width: 640px) {
    .highlight-desc {
        font-size: 12px;
    }
}

/* ===== Download Section ===== */
.download-section {
    position: relative;
    z-index: 10;
    padding: 48px 0;
}

@media (min-width: 640px) {
    .download-section {
        padding: 64px 0;
    }
}

@media (min-width: 1024px) {
    .download-section {
        padding: 96px 0;
    }
}

.download-card {
    background: linear-gradient(135deg, var(--color-green), rgba(11, 248, 139, 0.8));
    border-radius: 20px;
    padding: 24px 20px;
    position: relative;
    overflow: hidden;
}

@media (min-width: 640px) {
    .download-card {
        border-radius: 24px;
        padding: 32px 24px;
    }
}

@media (min-width: 1024px) {
    .download-card {
        border-radius: 32px;
        padding: 48px 32px;
    }
}

@media (min-width: 1280px) {
    .download-card {
        padding: 64px 48px;
    }
}

.download-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
}

.download-bg-pattern::before {
    content: '';
    position: absolute;
    top: -60px;
    left: -60px;
    width: 120px;
    height: 120px;
    background: #fff;
    border-radius: 50%;
}

@media (min-width: 640px) {
    .download-bg-pattern::before {
        top: -80px;
        left: -80px;
        width: 160px;
        height: 160px;
    }
}

.download-bg-pattern::after {
    content: '';
    position: absolute;
    bottom: -100px;
    right: -80px;
    width: 200px;
    height: 200px;
    background: #fff;
    border-radius: 50%;
}

@media (min-width: 640px) {
    .download-bg-pattern::after {
        bottom: -150px;
        right: -100px;
        width: 300px;
        height: 300px;
    }
}

.download-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.download-icon {
    margin: 0 auto 16px;
    color: var(--color-dark);
}

@media (min-width: 640px) {
    .download-icon {
        margin-bottom: 20px;
    }
}

@media (min-width: 1024px) {
    .download-icon {
        width: 64px;
        height: 64px;
        margin-bottom: 24px;
    }
}

.download-content h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
}

@media (min-width: 640px) {
    .download-content h2 {
        font-size: 28px;
        margin-bottom: 14px;
    }
}

@media (min-width: 1024px) {
    .download-content h2 {
        font-size: 36px;
        margin-bottom: 16px;
    }
}

@media (min-width: 1280px) {
    .download-content h2 {
        font-size: 44px;
    }
}

.download-content > p {
    color: rgba(15, 23, 39, 0.8);
    font-size: 13px;
    max-width: 100%;
    margin: 0 auto 20px;
    padding: 0 8px;
}

@media (min-width: 640px) {
    .download-content > p {
        font-size: 15px;
        max-width: 500px;
        margin-bottom: 24px;
    }
}

@media (min-width: 1024px) {
    .download-content > p {
        font-size: 17px;
        max-width: 600px;
        margin-bottom: 32px;
    }
}

.download-buttons {
    display: flex;
    flex-direction: row;
    justify-content: center;
    margin-bottom: 20px;
}

@media (min-width: 640px) {
    .download-buttons {
        margin-bottom: 28px;
    }
}

@media (min-width: 1024px) {
    .download-buttons {
        margin-bottom: 32px;
    }
}

.download-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: rgba(15, 23, 39, 0.7);
    font-size: 11px;
    flex-wrap: wrap;
}

@media (min-width: 640px) {
    .download-info {
        gap: 20px;
        font-size: 13px;
    }
}

@media (min-width: 1024px) {
    .download-info {
        gap: 24px;
        font-size: 14px;
    }
}

.download-info span {
    display: flex;
    align-items: center;
    gap: 6px;
}

@media (min-width: 640px) {
    .download-info span {
        gap: 8px;
    }
}

/* ===== Footer ===== */
.footer {
    position: relative;
    z-index: 10;
    padding: 24px 0;
    border-top: 1px solid var(--color-border);
}

@media (min-width: 640px) {
    .footer {
        padding: 32px 0;
    }
}

@media (min-width: 1024px) {
    .footer {
        padding: 48px 0;
    }
}

.footer-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

@media (min-width: 640px) {
    .footer-main {
        flex-direction: row;
        justify-content: space-between;
        gap: 32px;
    }
}

.footer-logo {
    height: 24px;
    opacity: 0.8;
    width: auto;
}

@media (min-width: 640px) {
    .footer-logo {
        height: 28px;
    }
}

@media (min-width: 1024px) {
    .footer-logo {
        height: 32px;
    }
}

.footer-links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

@media (min-width: 640px) {
    .footer-links {
        gap: 20px;
    }
}

@media (min-width: 1024px) {
    .footer-links {
        gap: 32px;
    }
}

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 12px;
    transition: color 0.3s;
}

@media (min-width: 640px) {
    .footer-links a {
        font-size: 13px;
    }
}

@media (min-width: 1024px) {
    .footer-links a {
        font-size: 14px;
    }
}

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

.footer-social {
    display: flex;
    gap: 12px;
}

@media (min-width: 640px) {
    .footer-social {
        gap: 14px;
    }
}

@media (min-width: 1024px) {
    .footer-social {
        gap: 16px;
    }
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-card);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-mint);
    transition: background 0.3s;
}

@media (min-width: 640px) {
    .social-link {
        width: 38px;
        height: 38px;
    }
}

@media (min-width: 1024px) {
    .social-link {
        width: 40px;
        height: 40px;
    }
}

.social-link:hover {
    background: rgba(11, 248, 139, 0.2);
}

.footer-bottom {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

@media (min-width: 640px) {
    .footer-bottom {
        margin-top: 28px;
        padding-top: 28px;
    }
}

@media (min-width: 1024px) {
    .footer-bottom {
        margin-top: 32px;
        padding-top: 32px;
    }
}

.footer-bottom p {
    color: var(--color-text-muted);
    font-size: 11px;
}

@media (min-width: 640px) {
    .footer-bottom p {
        font-size: 12px;
    }
}

@media (min-width: 1024px) {
    .footer-bottom p {
        font-size: 14px;
    }
}

/* ===== Animations ===== */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(11, 248, 139, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(11, 248, 139, 0.6);
    }
}

/* ===== Touch-friendly adjustments ===== */
@media (hover: none) {
    .btn:hover,
    .feature-card:hover,
    .highlight-item:hover,
    .social-link:hover {
        transform: none;
        box-shadow: inherit;
    }
}