/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #334155;
    background-color: #ffffff;
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
    text-decoration: none;
}

.logo i {
    font-size: 1.8rem;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #334155;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #2563eb;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #334155;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.2rem;
    color: #64748b;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.btn-primary {
    background: #2563eb;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: #2563eb;
    border: 2px solid #2563eb;
}

.btn-secondary:hover {
    background: #2563eb;
    color: white;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.1rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    padding: 80px 0;
    background: #f8fafc;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: #2563eb;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 1.5rem;
    color: white;
}

.service-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.service-description {
    color: #64748b;
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 0.5rem 0;
    color: #64748b;
    position: relative;
    padding-left: 1.5rem;
}

.service-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: bold;
}

/* YTBoost Section */
.ytboost {
    padding: 80px 0;
    background: #ffffff;
}

.ytboost-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.ytboost-info h3 {
    font-size: 2rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.ytboost-info p {
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 2rem;
}

.ytboost-features {
    list-style: none;
}

.ytboost-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    color: #64748b;
    font-weight: 500;
}

.ytboost-features li i {
    color: #2563eb;
    font-size: 1.2rem;
}

/* YTBoost App Styles */
.iphone-frame {
    width: 100%;
    max-width: 420px;
    border-radius: 30px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    background: #fff;
    overflow: hidden;
    margin: 0 auto;
}

.iphone-frame main {
    padding: 1.5rem;
}

.card {
    background: #fff;
    border-radius: 20px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
    text-align: center;
}

.card h2 {
    color: #1e293b;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.card input[type="text"] {
    width: 100%;
    padding: 0.9rem;
    font-size: 1rem;
    border-radius: 12px;
    border: 1px solid #ccc;
    margin: 1rem 0;
    font-family: inherit;
}

.card button {
    background: #2563eb;
    color: white;
    border: none;
    padding: 0.9rem 1.4rem;
    border-radius: 12px;
    font-size: 1rem;
    cursor: pointer;
    margin: 0.5rem 0;
    width: 100%;
    font-family: inherit;
    transition: background 0.3s ease;
}

.card button:hover {
    background: #1d4ed8;
}

.btn-back {
    background: #e0e0e0 !important;
    color: #333 !important;
}

.btn-back:hover {
    background: #d0d0d0 !important;
}

.counter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f3f5fa;
    padding: 0.6rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    gap: 0.75rem;
}

.counter button {
    flex: 1;
    padding: 0.6rem 0;
    font-size: 1.2rem;
    background: #dce3f2;
    border-radius: 10px;
    border: none;
    color: #333;
    font-weight: bold;
    width: auto !important;
    margin: 0 !important;
}

.counter button:active {
    background: #c8d2eb;
}

.counter span {
    flex: 2;
    background: #fff;
    border: 1px solid #ccc;
    border-radius: 10px;
    padding: 0.6rem 0;
    text-align: center;
    font-size: 1.2rem;
    font-weight: 500;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.05);
}

.card label {
    display: block;
    text-align: left;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #1e293b;
}

.progress-bar {
    width: 100%;
    background: #ddd;
    border-radius: 1rem;
    overflow: hidden;
    margin: 1rem 0;
}

.progress-bar div {
    height: 14px;
    width: 0%;
    background: #2563eb;
    transition: width 0.3s ease;
}

.btn-wa {
    display: block;
    background: #25d366;
    padding: 0.8rem;
    color: white;
    text-decoration: none;
    border-radius: 12px;
    margin: 1rem 0;
    text-align: center;
    font-weight: 500;
    transition: background 0.3s ease;
}

.btn-wa:hover {
    background: #20b358;
}

.popup-animated {
    background: #e6fbe8;
    color: #2e7d32;
    padding: 0.8rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    animation: fadeIn 0.4s ease-in;
    font-weight: 500;
}

.price-box {
    background: #eef3ff;
    padding: 1rem;
    border-radius: 1rem;
    margin-top: 1rem;
}

.price-box p {
    margin: 0.25rem 0;
}

.qris-img {
  max-width: 100%;
  border-radius: 16px;
  margin: 1rem 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.hidden {
    display: none;
}

.error {
    color: #ef4444;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.loader {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #2563eb;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 1rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
    0% { opacity: 0; transform: translateY(10px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* About Section */
.about {
    padding: 80px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-description {
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 2rem;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #64748b;
    font-weight: 500;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: #f8fafc;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 1.5rem;
    color: #1e293b;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-item i {
    font-size: 1.2rem;
    color: #2563eb;
    margin-top: 0.2rem;
}

.contact-item h4 {
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: #64748b;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #1e293b;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
}

.form-group textarea {
    resize: vertical;
}

/* Footer */
.footer {
    background: #1e293b;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 1rem;
}

.footer-logo i {
    font-size: 1.8rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: #2563eb;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: #2563eb;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: background 0.3s ease;
}

.social-links a:hover {
    background: #1d4ed8;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #334155;
    color: #94a3b8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        padding: 2rem 0;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

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

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

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

    .ytboost-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

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

    .services,
    .ytboost,
    .about,
    .contact {
        padding: 60px 0;
    }

    .service-card,
    .contact-form {
        padding: 1.5rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .iphone-frame {
        max-width: 100%;
        border-radius: 20px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.service-card,
.about-content,
.contact-content {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scroll offset for fixed header */
section {
    scroll-margin-top: 80px;
}