/* Global styles & Variables */
:root {
    --bg-dark: #080b11;
    --card-bg: rgba(17, 24, 39, 0.55);
    --card-border: rgba(255, 255, 255, 0.08);
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.35);
    --secondary: #10b981;
    --secondary-hover: #059669;
    --secondary-glow: rgba(16, 185, 129, 0.35);
    --text-main: #f9fafb;
    --text-muted: #9ca3af;
    --radius-lg: 20px;
    --radius-md: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Background gradient lights */
.glow-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background: radial-gradient(circle at 10% 15%, rgba(99, 102, 241, 0.16) 0%, transparent 40%),
                radial-gradient(circle at 85% 85%, rgba(16, 185, 129, 0.1) 0%, transparent 45%);
    background-size: cover;
}

/* Container */
.landing-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 80px 20px;
}

/* Glassmorphism Header */
.glass-header {
    background: rgba(17, 24, 39, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 16px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 30px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

.logo-box {
    background: linear-gradient(135deg, var(--primary), #818cf8);
    width: 38px;
    height: 38px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.logo-text {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

.accent-text {
    background: linear-gradient(90deg, #818cf8, #a5b4fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.link-item {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.link-item:hover {
    color: var(--text-main);
}

/* Hero Section */
.hero-section {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: 60px;
    padding: 80px 0;
}

@media (max-width: 992px) {
    .hero-section {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 50px 0;
    }
    .cta-group {
        justify-content: center;
    }
}

.hero-tagline {
    background: rgba(99, 102, 241, 0.1);
    color: #a5b4fc;
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
}

h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 3.2rem;
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
}

.glow-text {
    background: linear-gradient(135deg, var(--primary), #a5b4fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.hero-desc {
    color: var(--text-muted);
    font-size: 1.15rem;
    margin-bottom: 40px;
    max-width: 580px;
}

@media (max-width: 992px) {
    .hero-desc {
        margin: 0 auto 40px auto;
    }
}

/* Call To Action Buttons */
.cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 30px;
}

.btn {
    text-decoration: none;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 1.05rem;
    display: inline-flex;
    align-items: center;
    gap: 14px;
    transition: var(--transition);
    color: white;
}

.btn-icon {
    font-size: 1.6rem;
}

.btn-text-wrapper {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.btn-subtext {
    font-size: 0.75rem;
    font-weight: 400;
    opacity: 0.8;
}

.btn-maintext {
    font-size: 1rem;
    margin-top: -2px;
}

.btn-primary {
    background: var(--primary);
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-glow);
}

.btn-secondary {
    background: var(--secondary);
    box-shadow: 0 4px 20px var(--secondary-glow);
}

.btn-secondary:hover {
    background: var(--secondary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--secondary-glow);
}

.alternative-downloads {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.inline-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.inline-link:hover {
    text-decoration: underline;
    color: #818cf8;
}

/* Hero visual mockup */
.hero-preview {
    display: flex;
    justify-content: center;
}

.mockup-container {
    width: 100%;
    max-width: 460px;
    position: relative;
}

.glass-mockup {
    background: rgba(17, 24, 39, 0.6);
    backdrop-filter: blur(14px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    width: 100%;
    aspect-ratio: 1.45;
    display: flex;
    flex-direction: column;
}

.mockup-header {
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--card-border);
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.mockup-header .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}
.mockup-header .dot.red { background: #ef4444; }
.mockup-header .dot.yellow { background: #f59e0b; }
.mockup-header .dot.green { background: #10b981; }

.mockup-title {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0 auto;
    padding-right: 24px;
}

.mockup-body {
    flex: 1;
    display: flex;
}

.mockup-sidebar {
    width: 25%;
    border-right: 1px solid var(--card-border);
    background: rgba(0, 0, 0, 0.1);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mockup-content {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mockup-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 8px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Simulated text bar lines */
.bar {
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.08);
}
.bar.short { width: 40%; }
.bar.medium { width: 65%; }
.bar.long { width: 90%; }
.title-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.15);
    margin-bottom: 4px;
}

/* Features Section */
.features-section, .guides-section {
    padding: 60px 0;
}

.section-title {
    font-family: 'Outfit', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 48px;
    letter-spacing: -0.5px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
}

.glass-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.35);
}

.feature-card {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.icon-box {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border: 1px solid rgba(99, 102, 241, 0.15);
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.feature-card h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.2rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Guides / Tab Section */
.tabs-header {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 30px;
}

.tab-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    padding: 12px 24px;
    border-radius: 30px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.06);
}

.tab-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 4px 15px var(--primary-glow);
}

.tab-pane {
    display: none;
    max-width: 800px;
    margin: 0 auto;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

.step-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.step-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

@media (max-width: 576px) {
    .step-item {
        flex-direction: column;
        gap: 16px;
    }
}

.step-number {
    background: linear-gradient(135deg, var(--primary), #818cf8);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 4px 10px var(--primary-glow);
}

.step-desc h4 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.step-desc p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.step-desc code {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    padding: 2px 6px;
    font-family: monospace;
    color: #cbd5e1;
}

.info-note {
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: 8px;
    padding: 12px 16px;
    margin-top: 14px;
    display: flex;
    gap: 12px;
    font-size: 0.85rem;
    color: #c7d2fe;
}

.info-note i {
    font-size: 1.1rem;
    color: #a5b4fc;
    margin-top: 2px;
}

/* Footer */
.glass-footer {
    text-align: center;
    padding: 40px 0;
    border-top: 1px solid var(--card-border);
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 60px;
}

/* Keyframes Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}