/* ========================================
   CSS Variables & Design Tokens
======================================== */
:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-accent: #151515;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --accent-cyan: #00ffff;
    --accent-purple: #a855f7;
    --border-color: rgba(255, 255, 255, 0.1);

    --font-primary: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
    position: relative;
}

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

/* ========================================
   Shooting Stars Background
======================================== */
.stars-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    background: radial-gradient(ellipse at bottom, #1a1a2e 0%, #000000 100%);
}

.stars-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(2px 2px at 20px 30px, white, transparent),
        radial-gradient(2px 2px at 60px 70px, white, transparent),
        radial-gradient(1px 1px at 50px 50px, white, transparent),
        radial-gradient(1px 1px at 130px 80px, white, transparent),
        radial-gradient(2px 2px at 90px 10px, white, transparent);
    background-size: 200px 200px;
    background-repeat: repeat;
    opacity: 0.5;
    animation: twinkle 4s ease-in-out infinite;
}

@keyframes twinkle {

    0%,
    100% {
        opacity: 0.5;
    }

    50% {
        opacity: 0.8;
    }
}

/* Shooting Stars */
.shooting-star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: linear-gradient(90deg, #ffffff, transparent);
    border-radius: 50%;
    opacity: 0;
}

.shooting-star::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 1), transparent);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.shooting-star:nth-child(1) {
    top: 10%;
    left: 10%;
    animation: shoot 3s ease-in-out 2s infinite;
}

.shooting-star:nth-child(2) {
    top: 20%;
    left: 80%;
    animation: shoot 3s ease-in-out 4s infinite;
}

.shooting-star:nth-child(3) {
    top: 50%;
    left: 20%;
    animation: shoot 3s ease-in-out 6s infinite;
}

.shooting-star:nth-child(4) {
    top: 70%;
    left: 70%;
    animation: shoot 3s ease-in-out 8s infinite;
}

.shooting-star:nth-child(5) {
    top: 30%;
    left: 50%;
    animation: shoot 3s ease-in-out 10s infinite;
}

.shooting-star:nth-child(6) {
    top: 60%;
    left: 40%;
    animation: shoot 3s ease-in-out 12s infinite;
}

.shooting-star:nth-child(7) {
    top: 15%;
    left: 60%;
    animation: shoot 3s ease-in-out 14s infinite;
}

.shooting-star:nth-child(8) {
    top: 80%;
    left: 30%;
    animation: shoot 3s ease-in-out 16s infinite;
}

@keyframes shoot {
    0% {
        transform: translateX(0) translateY(0) rotate(-45deg);
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    50% {
        opacity: 1;
    }

    100% {
        transform: translateX(300px) translateY(300px) rotate(-45deg);
        opacity: 0;
    }
}

/* ========================================
   Header Styles
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    z-index: 100;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    transition: color var(--transition-base);
}

.logo:hover {
    color: var(--accent-cyan);
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

.header-right {
    display: flex;
    gap: var(--spacing-xl);
}

/* Navigation Links with Bracket Animation */
.nav-link {
    position: relative;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 0;
    overflow: hidden;
    transition: all var(--transition-base);
}

.nav-link .bracket {
    display: inline-block;
    opacity: 0;
    color: var(--accent-cyan);
    transition: all var(--transition-base);
    font-weight: 600;
}

.nav-link .bracket.left {
    transform: translateX(10px);
}

.nav-link .bracket.right {
    transform: translateX(-10px);
}

.nav-link .nav-text {
    position: relative;
    transition: all var(--transition-base);
}

.nav-link:hover .bracket {
    opacity: 1;
    transform: translateX(0);
}

.nav-link:hover .nav-text {
    color: var(--accent-cyan);
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

/* ========================================
   Main Content
======================================== */
.main-content {
    padding-top: 80px;
    position: relative;
    z-index: 1;
}

/* ========================================
   Hero Section
======================================== */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: calc(100vh - 80px);
    padding: var(--spacing-2xl);
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-left {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.hero-name {
    font-size: clamp(4rem, 15vw, 12rem);
    font-weight: 700;
    line-height: 0.9;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, var(--accent-cyan) 50%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out;
}

.hero-tagline {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.hero-info {
    display: flex;
    gap: var(--spacing-lg);
}

.info-block {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.info-block .label {
    font-size: 1rem;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    white-space: nowrap;
}

/* ========================================
   Download Section
======================================== */
.download-section {
    min-height: 80vh;
    padding: var(--spacing-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
}

.download-container {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.download-heading {
    font-size: clamp(3rem, 10vw, 8rem);
    font-weight: 700;
    line-height: 0.9;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.download-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.download-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all var(--transition-base);
    cursor: pointer;
    backdrop-filter: blur(10px);
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-cyan);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.2);
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    transition: all var(--transition-base);
}

.download-btn:hover .btn-icon {
    color: var(--accent-cyan);
    transform: scale(1.1);
}

.btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.btn-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.btn-title {
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* ========================================
   Features Section
======================================== */
.features-section {
    padding: var(--spacing-2xl);
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.features-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all var(--transition-slow);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-cyan);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 255, 255, 0.1);
}

.feature-icon {
    margin-bottom: var(--spacing-lg);
}

.icon-placeholder {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    transition: all var(--transition-base);
}

.feature-card:hover .icon-placeholder {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.3);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.02em;
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1rem;
}

/* ========================================
   Support Section
======================================== */
.support-section {
    padding: var(--spacing-2xl);
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.support-container {
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.support-heading {
    font-size: clamp(3rem, 10vw, 8rem);
    font-weight: 700;
    line-height: 0.9;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.support-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.contact-info {
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all var(--transition-base);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-info:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-cyan);
}

.contact-heading {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.02em;
    text-align: center;
}

.contact-email {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(0, 255, 255, 0.05);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 8px;
    font-size: 1.1rem;
    transition: all var(--transition-base);
    color: var(--text-primary);
    margin: 0 auto;
    display: flex;
    justify-content: center;
}

.contact-email:hover {
    background: rgba(0, 255, 255, 0.1);
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.2);
}

.email-icon {
    font-size: 1.5rem;
    transition: all var(--transition-base);
}

.contact-email:hover .email-icon {
    transform: scale(1.1);
    color: var(--accent-cyan);
}

.email-text {
    font-weight: 500;
}

.faq-section {
    margin-top: var(--spacing-2xl);
}

.faq-heading {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    letter-spacing: 0.02em;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.faq-item {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all var(--transition-base);
}

.faq-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 255, 255, 0.3);
    transform: translateX(8px);
}

.faq-question {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    letter-spacing: 0.01em;
}

.faq-answer {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1rem;
}

/* ========================================
   Footer Styles
======================================== */
.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
}

.footer-left,
.footer-center,
.footer-right {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.footer-center {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-link {
    color: var(--text-muted);
    transition: all var(--transition-base);
}

.footer-link:hover {
    color: var(--accent-cyan);
}

.footer-separator {
    color: var(--border-color);
}

/* ========================================
   Responsive Design
======================================== */
@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        padding: var(--spacing-lg);
    }

    .hero-right {
        justify-content: flex-start;
    }

    .hero-name {
        font-size: clamp(3rem, 12vw, 6rem);
    }

    .header-right {
        gap: var(--spacing-md);
    }

    .nav-link {
        font-size: 0.75rem;
    }

    .download-buttons {
        flex-direction: column;
        width: 100%;
    }

    .download-btn {
        width: 100%;
        max-width: 300px;
    }

    .features-container {
        grid-template-columns: 1fr;
    }

    .footer {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    .footer-center {
        flex-direction: column;
    }

    .support-section {
        padding: var(--spacing-md);
    }

    .support-heading {
        font-size: clamp(2rem, 8vw, 3rem);
        margin-bottom: var(--spacing-md);
    }

    .support-description {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
    }

    .contact-info {
        padding: var(--spacing-md);
    }

    .contact-heading {
        font-size: 1.2rem;
        margin-bottom: var(--spacing-sm);
    }

    .contact-email {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.95rem;
        flex-wrap: wrap;
        justify-content: center;
        text-align: center;
    }

    .email-icon {
        font-size: 1.2rem;
    }

    .faq-heading {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-md);
    }

    .faq-item {
        padding: var(--spacing-md);
    }

    .faq-question {
        font-size: 1rem;
    }

    .faq-answer {
        font-size: 0.9rem;
    }

    .faq-item:hover {
        transform: translateX(4px);
    }
}