:root {
    --primary-blue: #00a3ff;
    --primary-purple: #8b5cf6;
    --bg-black: #000000;
    --card-bg: #0a0a0a;
    --text-white: #ffffff;
    --text-gray: #888888;
    --nav-bg: rgba(255, 255, 255, 0.05);
}

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

html {
    scroll-behavior: smooth;
    scroll-snap-type: y mandatory;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    background-color: var(--bg-black);
    color: var(--text-white);
    line-height: 1.5;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Glow Backgrounds */
.glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.2;
}

.glow-1 {
    width: 600px;
    height: 600px;
    background: var(--primary-blue);
    top: -200px;
    left: -100px;
}

.glow-2 {
    width: 500px;
    height: 500px;
    background: var(--primary-purple);
    bottom: -100px;
    right: -100px;
}

/* Header Styles */
.pill-navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    max-width: none;
    height: 72px;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 60px;
    transform: none;
    border-radius: 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    text-decoration: none;
    font-size: 36px;
    font-weight: 800;
    color: var(--text-white);
    display: flex;
    align-items: center;
}

.logo-accent {
    color: var(--primary-blue);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-white);
    font-size: 16px;
    font-weight: 500;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.nav-links a:hover {
    opacity: 1;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    scroll-snap-align: start;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 72px 0 0;
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex: 1;
    min-height: calc(100vh - 72px);
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.main-title {
    font-size: 72px;
    font-weight: 800;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

.highlight-blue {
    color: var(--primary-blue);
}

.highlight-purple {
    background: linear-gradient(135deg, #a855f7 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sub-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    opacity: 0.9;
}

/* Spacer area requested by user for mockup or just layout gap */
.hero-visual-area {
    display: none;
}

.cta-group {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-download {
    padding: 12px 28px;
    border-radius: 100px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-download.win {
    background: linear-gradient(135deg, #00a3ff 0%, #0066ff 100%);
    color: white;
}

.btn-download.mac {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-download:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 40px rgba(0, 163, 255, 0.3);
}

.btn-download.is-disabled,
.btn-download.is-disabled:hover {
    opacity: 0.45;
    transform: none;
    box-shadow: none;
    cursor: not-allowed;
}

/* Features Section */
.features {
    min-height: 100vh;
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 60px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
}

.gradient-blue {
    background: linear-gradient(135deg, #00a3ff 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-desc {
    color: var(--text-gray);
    font-size: 18px;
    max-width: 800px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 30px;
    transition: all 0.4s ease;
    margin-top: -10px;
}

.feature-card.highlighted {
    border: 1px solid rgba(0, 163, 255, 0.3);
    background: rgba(0, 163, 255, 0.02);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

.card-header-inner {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 15px;
}

.icon-box {
    width: 44px;
    height: 44px;
    background: rgba(0, 163, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-box ion-icon {
    font-size: 24px;
    color: var(--primary-blue);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-gray);
    font-size: 13px;
    line-height: 1.6;
}

/* Workflow Section */
.workflow {
    min-height: 100vh;
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 80px 0;
}

.workflow-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.workflow-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 60px;
}

.step-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.step-item {
    display: flex;
    gap: 24px;
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #00a3ff 0%, #8b5cf6 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 20px;
    flex-shrink: 0;
}

.step-text h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-text p {
    color: var(--text-gray);
    font-size: 15px;
}

/* Video Mockup */
.video-mockup {
    background: #0a0a0a;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 32px;
    padding: 20px;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5);
}

.video-container {
    background: #000;
    border-radius: 20px;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.tutorial-player {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.tutorial-player-header {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tutorial-eyebrow {
    color: var(--primary-blue);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.tutorial-player-header h3 {
    font-size: 28px;
    font-weight: 700;
}

.tutorial-player-header p {
    color: var(--text-gray);
    font-size: 14px;
}

.tutorial-video {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
    background: #000;
}

.video-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    color: var(--text-gray);
    transition: color 0.3s;
}

.video-placeholder:hover {
    color: var(--text-white);
}

.video-placeholder ion-icon {
    font-size: 80px;
}

.video-placeholder[hidden] {
    display: none;
}

.tutorial-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: var(--text-gray);
    font-size: 14px;
}

.tutorial-open-link {
    color: var(--text-white);
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    transition: border-color 0.3s ease, color 0.3s ease;
}

.tutorial-open-link:hover {
    color: var(--primary-blue);
    border-color: rgba(0, 163, 255, 0.6);
}

.tutorial-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.tutorial-item {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-white);
    text-align: left;
    cursor: pointer;
    transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.tutorial-item:hover {
    transform: translateY(-2px);
    border-color: rgba(0, 163, 255, 0.35);
}

.tutorial-item.active {
    border-color: rgba(0, 163, 255, 0.6);
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.16) 0%, rgba(139, 92, 246, 0.12) 100%);
}

.tutorial-item-index {
    min-width: 36px;
    height: 36px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.tutorial-item-title {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
}

/* Footer */
.footer {
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    background: #000;
}

.footer p {
    color: var(--text-gray);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: 1fr 1fr; }
    .workflow-container { grid-template-columns: 1fr; gap: 40px; }
    .main-title { font-size: 56px; }
    .sub-title { font-size: 34px; }
    html { scroll-snap-type: none; } /* Disable snap on small screens */
}

.cta-group {
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.version-label {
    font-size: 13px;
    color: var(--text-gray);
    opacity: 0.8;
    margin-top: 15px;
}

.version-label span {
    color: var(--primary-blue);
    font-weight: 600;
}

@media (max-width: 768px) {
    .features-grid { grid-template-columns: 1fr; }
    .main-title { font-size: 42px; }
    .sub-title { font-size: 28px; }
    .nav-links { display: none; }
    .tutorial-meta {
        flex-direction: column;
        align-items: flex-start;
    }
    .tutorial-player-header h3 {
        font-size: 22px;
    }
}