/* ============================================
   YaYa VPN - Cute & Beautiful Showcase Website
   ============================================ */

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

:root {
    --pink-50: #fef1f6;
    --pink-100: #fde4ee;
    --pink-200: #fcc8dd;
    --pink-300: #f9a8c9;
    --pink-400: #f472a8;
    --pink-500: #ec4899;
    --pink-600: #db2777;
    --pink-700: #be185d;
    --rose-400: #fb7185;
    --coral: #ff6b81;
    --peach: #ffb3ba;
    --mint: #5eead4;
    --lavender: #c4b5fd;
    --cream: #fff8f0;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-500: #6b7280;
    --gray-700: #374151;
    --gray-900: #111827;
    --shadow-sm: 0 1px 3px rgba(236, 72, 153, 0.08);
    --shadow-md: 0 4px 20px rgba(236, 72, 153, 0.12);
    --shadow-lg: 0 10px 40px rgba(236, 72, 153, 0.15);
    --shadow-xl: 0 20px 60px rgba(236, 72, 153, 0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-700);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul { list-style: none; }

/* --- Floating Blobs --- */
.blob {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    z-index: -1;
    pointer-events: none;
}
.blob-1 {
    width: 500px; height: 500px;
    background: var(--pink-200);
    top: -100px; left: -150px;
    animation: blobFloat 20s ease-in-out infinite;
}
.blob-2 {
    width: 400px; height: 400px;
    background: var(--lavender);
    top: 40%; right: -100px;
    animation: blobFloat 25s ease-in-out infinite reverse;
}
.blob-3 {
    width: 350px; height: 350px;
    background: var(--peach);
    bottom: 20%; left: -80px;
    animation: blobFloat 22s ease-in-out infinite 5s;
}
.blob-4 {
    width: 300px; height: 300px;
    background: var(--mint);
    bottom: -50px; right: 20%;
    animation: blobFloat 18s ease-in-out infinite 3s;
    opacity: 0.2;
}

@keyframes blobFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(15px, 10px) scale(1.02); }
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    font-family: 'Nunito', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    color: white;
    box-shadow: 0 4px 15px rgba(236, 72, 153, 0.35);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(236, 72, 153, 0.45);
}

.btn-outline {
    border-color: var(--pink-400);
    color: var(--pink-500);
    background: transparent;
}
.btn-outline:hover {
    background: var(--pink-50);
    transform: translateY(-2px);
}

.btn-white {
    background: white;
    color: var(--pink-600);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0,0,0,0.15);
}

.btn-white-outline {
    border-color: white;
    color: white;
    background: transparent;
}
.btn-white-outline:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn-nav {
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    color: white;
    padding: 10px 24px;
    font-size: 0.85rem;
    box-shadow: 0 2px 10px rgba(236, 72, 153, 0.3);
}
.btn-nav:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(236, 72, 153, 0.4);
}

/* --- Gradient Text --- */
.gradient-text {
    background: linear-gradient(135deg, var(--pink-500), var(--coral), var(--pink-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(236, 72, 153, 0.08);
    transition: var(--transition);
}
.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 900;
    font-size: 1.4rem;
    color: var(--gray-900);
}
.logo-img {
    height: 48px;
    width: auto;
    display: block;
}
.logo-icon { font-size: 1.6rem; }

.nav-links {
    display: flex;
    gap: 32px;
}
.nav-links a {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--gray-500);
    position: relative;
    transition: var(--transition);
}
.nav-links a:hover {
    color: var(--pink-500);
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--pink-400), var(--pink-600));
    border-radius: 2px;
    transition: var(--transition);
}
.nav-links a:hover::after { width: 100%; }

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.mobile-toggle span {
    width: 24px;
    height: 2.5px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: var(--transition);
}

/* --- Hero Section --- */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(160deg, var(--pink-50) 0%, var(--cream) 30%, var(--pink-100) 60%, var(--pink-200) 100%);
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: white;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--pink-500);
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
    animation: fadeInUp 0.6s ease-out;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--gray-900);
    line-height: 1.15;
    margin-bottom: 20px;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--gray-500);
    max-width: 480px;
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}
.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--gray-900);
}
.stat-label {
    font-size: 0.8rem;
    color: var(--gray-500);
    font-weight: 600;
}
.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--gray-200);
}

/* --- Hero Phone Mockup --- */
.hero-phone {
    position: relative;
    display: flex;
    justify-content: center;
    animation: fadeInRight 1s ease-out 0.3s both;
}

.phone-mockup {
    position: relative;
    z-index: 2;
}

.phone-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(244, 114, 168, 0.3) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    animation: glowPulse 4s ease-in-out infinite;
    z-index: 0;
}

@keyframes glowPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
}

.phone-frame {
    width: 280px;
    height: auto;
    background: var(--gray-900);
    border-radius: 36px;
    padding: 10px;
    box-shadow:
        0 30px 60px rgba(0, 0, 0, 0.15),
        0 0 0 2px rgba(255,255,255,0.1),
        inset 0 0 0 1px rgba(255,255,255,0.05);
    position: relative;
    z-index: 1;
    overflow: hidden;
    animation: phoneFloat 6s ease-in-out infinite;
}

@keyframes phoneFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.phone-screenshot {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 28px;
}

/* Floating elements */
.float-element {
    position: absolute;
    animation: float 6s ease-in-out infinite;
    z-index: 1;
    background: white;
    border-radius: 16px;
    padding: 10px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.float-1 { top: 8%; left: -20px; animation-delay: 0s; }
.float-2 { top: 3%; right: -10px; animation-delay: 1.5s; }
.float-3 { bottom: 22%; left: -30px; animation-delay: 3s; }
.float-4 { bottom: 12%; right: -20px; animation-delay: 4.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

.hero-wave {
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
}
.hero-wave svg { display: block; width: 100%; }

/* --- Section Styles --- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}
.section-badge {
    display: inline-block;
    padding: 6px 18px;
    background: var(--pink-50);
    border: 1px solid var(--pink-200);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--pink-500);
    margin-bottom: 16px;
}
.section-header h2 {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--gray-900);
    margin-bottom: 12px;
}
.section-header p {
    font-size: 1.1rem;
    color: var(--gray-500);
    max-width: 500px;
    margin: 0 auto;
}

/* --- Features --- */
.features {
    padding: 100px 0;
    background: white;
}

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

.feature-card {
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    background: white;
    border: 1px solid var(--pink-100);
    transition: var(--transition);
    text-align: center;
}
.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--pink-200);
}

.feature-icon {
    font-size: 2.8rem;
    margin-bottom: 16px;
    display: block;
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* --- Screenshots --- */
.screenshots {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--pink-50) 100%);
}

.screens-showcase {
    display: flex;
    justify-content: center;
    gap: 20px;
    max-width: 960px;
    margin: 0 auto;
}

.screen-card {
    text-align: center;
    transition: var(--transition);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: linear-gradient(160deg, var(--pink-50), white);
    box-shadow: 0 6px 24px rgba(236, 72, 153, 0.1);
    border: 1px solid var(--pink-100);
    flex: 1;
    max-width: 220px;
}
.screen-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(236, 72, 153, 0.2);
}
.screen-card.featured {
    transform: scale(1.04);
    box-shadow: 0 10px 30px rgba(236, 72, 153, 0.18);
    border-color: var(--pink-300);
}
.screen-card.featured:hover {
    transform: scale(1.04) translateY(-8px);
    box-shadow: 0 20px 50px rgba(236, 72, 153, 0.25);
}

.screen-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.screen-label {
    font-weight: 800;
    font-size: 0.75rem;
    color: var(--pink-500);
    padding: 10px 6px;
    letter-spacing: 0.02em;
    background: white;
}

/* --- Servers Section --- */
.servers {
    padding: 100px 0;
    background: white;
}

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

.server-card {
    text-align: center;
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--pink-100);
    background: white;
    transition: var(--transition);
}
.server-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--pink-200);
}

.server-flag {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 12px;
}

.server-flag-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pink-100), var(--pink-200));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-weight: 900;
    font-size: 0.85rem;
    color: var(--pink-600);
    border: 2px solid var(--pink-200);
}

.server-card h4 {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.server-count {
    font-size: 0.8rem;
    color: var(--gray-500);
    display: block;
    margin-bottom: 16px;
}

.server-bar {
    height: 6px;
    background: var(--pink-100);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}
.server-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--pink-400), var(--mint));
    border-radius: 3px;
    transition: width 1.5s ease-out;
}

.server-speed {
    font-size: 0.85rem;
    color: var(--pink-500);
    font-weight: 800;
}

/* --- Pricing --- */
.pricing {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--pink-50) 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: center;
}

.pricing-card {
    padding: 40px 32px;
    border-radius: var(--radius-xl);
    background: white;
    border: 1px solid var(--pink-100);
    text-align: center;
    position: relative;
    transition: var(--transition);
}
.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.popular {
    border: 2px solid var(--pink-400);
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}
.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-6px);
}

.popular-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    color: white;
    padding: 6px 20px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 800;
    white-space: nowrap;
}

.pricing-header h3 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.pricing-price {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 2px;
    margin-bottom: 4px;
}
.currency {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--pink-500);
    margin-top: 8px;
}
.amount {
    font-size: 3rem;
    font-weight: 900;
    color: var(--gray-900);
    line-height: 1;
}

.pricing-period {
    font-size: 0.85rem;
    color: var(--gray-500);
    font-weight: 600;
    display: block;
    margin-bottom: 24px;
}

.pricing-features {
    text-align: left;
    margin-bottom: 28px;
}
.pricing-features li {
    padding: 8px 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
}
.pricing-features li:last-child { border-bottom: none; }
.pricing-features li {
    display: flex;
    align-items: center;
    gap: 8px;
}
.li-icon {
    flex-shrink: 0;
    vertical-align: middle;
}
.pricing-features li.disabled {
    color: var(--gray-500);
    opacity: 0.6;
}

.pricing-card .btn {
    width: 100%;
    justify-content: center;
}

/* --- Download CTA --- */
.download-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--pink-400) 0%, var(--pink-600) 50%, var(--coral) 100%);
    position: relative;
    overflow: hidden;
}
.download-cta::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
    top: -100px;
    right: -100px;
}
.download-cta::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
    bottom: -80px;
    left: -80px;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}
.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 900;
    color: white;
    margin-bottom: 16px;
}
.cta-content p {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.85);
    max-width: 500px;
    margin: 0 auto 32px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
}

.cta-trust {
    display: flex;
    justify-content: center;
    gap: 32px;
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    font-weight: 700;
}

/* --- Footer --- */
.footer {
    padding: 60px 0 24px;
    background: var(--gray-900);
    color: var(--gray-200);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--gray-500);
    margin-top: 12px;
    max-width: 280px;
    line-height: 1.7;
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
}
.footer-links a {
    display: block;
    padding: 6px 0;
    font-size: 0.9rem;
    color: var(--gray-500);
    transition: var(--transition);
}
.footer-links a:hover {
    color: var(--pink-400);
    transform: translateX(4px);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.08);
    font-size: 0.85rem;
    color: var(--gray-500);
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .hero h1 { font-size: 2.8rem; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .screens-showcase { gap: 14px; }
    .screen-card { max-width: 180px; }
    .screen-card.featured { transform: scale(1.02); }
    .screen-card.featured:hover { transform: scale(1.02) translateY(-8px); }
    .server-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-links, .btn-nav { display: none; }
    .mobile-toggle { display: flex; }

    /* Mobile menu */
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        padding: 20px;
        gap: 0;
        box-shadow: var(--shadow-lg);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    }
    .nav-links.active a {
        padding: 14px 16px;
        border-bottom: 1px solid var(--gray-100);
    }

    .hero {
        padding: 120px 0 60px;
        min-height: auto;
    }
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    .hero h1 { font-size: 2.2rem; }
    .hero-subtitle { margin: 0 auto 28px; }
    .hero-buttons { justify-content: center; flex-wrap: wrap; }
    .hero-stats { justify-content: center; }

    .phone-frame { width: 240px; }

    .section-header h2 { font-size: 2rem; }

    .features-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .screens-showcase { flex-wrap: wrap; gap: 12px; }
    .screen-card { max-width: 46%; flex: 1 1 40%; }
    .screen-card.featured { transform: none; }
    .screen-card.featured:hover { transform: translateY(-8px); }
    .server-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 380px;
        margin: 0 auto;
    }
    .pricing-card.popular {
        transform: scale(1);
    }
    .pricing-card.popular:hover {
        transform: translateY(-6px);
    }

    .cta-content h2 { font-size: 1.8rem; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .cta-trust { flex-direction: column; gap: 12px; }

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

@media (max-width: 480px) {
    .hero h1 { font-size: 1.8rem; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .stat-divider { width: 40px; height: 1px; }
    .screens-showcase { gap: 8px; }
    .screen-card { max-width: 46%; }
    .server-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .phone-frame { width: 220px; }
}