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

:root {
    --blue: #228be6;
    --blue-dark: #1971c2;
    --blue-light: #e7f5ff;
    --orange: #fd7e14;
    --orange-light: #fff4e6;
    --teal: #12b886;
    --teal-light: #e6fcf5;
    --violet: #7950f2;
    --violet-light: #f3f0ff;
    --pink: #e64980;
    --pink-light: #fff0f6;
    --green: #40c057;
    --green-light: #ebfbee;
    --red: #fa5252;
    --red-light: #fff5f5;
    --cyan: #15aabf;
    --cyan-light: #e3fafc;
    --gray-50: #f8f9fa;
    --gray-100: #f1f3f5;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-500: #868e96;
    --gray-600: #495057;
    --gray-700: #343a40;
    --gray-800: #212529;
    --gray-900: #0f0f0f;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
    --transition: 0.2s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--gray-800);
    line-height: 1.6;
    background: #ffffff;
    -webkit-font-smoothing: antialiased;
}

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

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
    padding: 12px 0;
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--gray-900);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    height: 32px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-600);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition);
}

.nav-links a:hover {
    color: var(--blue);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--blue);
    color: white;
    box-shadow: 0 2px 4px rgba(34,139,230,0.3);
}

.btn-primary:hover {
    background: var(--blue-dark);
    box-shadow: 0 4px 8px rgba(34,139,230,0.4);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--gray-700);
    border: 1.5px solid var(--gray-300);
}

.btn-outline:hover {
    border-color: var(--blue);
    color: var(--blue);
}

.btn-white {
    background: white;
    color: var(--blue);
    font-weight: 600;
}

.btn-white:hover {
    background: var(--gray-50);
    transform: translateY(-1px);
}

.btn-outline-white {
    background: transparent;
    color: white;
    border: 1.5px solid rgba(255,255,255,0.4);
    font-weight: 500;
}

.btn-outline-white:hover {
    border-color: white;
    background: rgba(255,255,255,0.1);
}

.nav-links a.btn-nav {
    background: var(--blue);
    color: white;
    padding: 8px 16px;
    font-size: 0.85rem;
}

.nav-links a.btn-nav:hover {
    background: var(--blue-dark);
    color: white;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* ===== Hero ===== */
.hero {
    padding: 140px 0 60px;
    background: linear-gradient(180deg, var(--blue-light) 0%, #ffffff 100%);
}

.hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 14px;
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 2.75rem;
    line-height: 1.15;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 20px;
    max-width: 720px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--blue), var(--violet));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    justify-content: center;
}

.hero-stats {
    display: flex;
    gap: 40px;
    justify-content: center;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* ===== App Window Mock ===== */
.hero-visual {
    width: 100%;
    max-width: 960px;
    margin-top: 48px;
}

.app-window {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: 0 25px 60px -12px rgba(0, 0, 0, 0.15), 0 8px 20px -8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.window-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.window-title {
    margin-left: 12px;
    font-size: 0.8rem;
    color: var(--gray-500);
    font-weight: 500;
}

.screenshot-img {
    width: 100%;
    display: block;
}

/* ===== Benefits ===== */
.benefits-section {
    padding: 100px 0;
    background: var(--gray-50);
}

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

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.benefit-card {
    padding: 36px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    background: white;
    transition: all var(--transition);
}

.benefit-card:hover {
    border-color: var(--blue);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-icon.blue { background: var(--blue-light); color: var(--blue); }
.feature-icon.teal { background: var(--teal-light); color: var(--teal); }
.feature-icon.violet { background: var(--violet-light); color: var(--violet); }

.benefit-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.benefit-card p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===== Workflow ===== */
.workflow-section {
    padding: 100px 0;
}

.workflow-steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 16px;
}

.step {
    flex: 1;
    max-width: 300px;
    text-align: center;
    padding: 32px 24px;
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--blue);
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--gray-900);
}

.step p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.6;
}

.step-arrow {
    font-size: 1.5rem;
    color: var(--gray-300);
    margin-top: 44px;
    flex-shrink: 0;
}

/* ===== Video ===== */
.video-section {
    padding: 80px 0 100px;
    background: var(--gray-50);
}

.video-wrapper {
    max-width: 800px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-200);
}

.video-wrapper iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: block;
    border: none;
}

.video-placeholder {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--gray-800);
    background-size: cover !important;
    background-position: center !important;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    cursor: pointer;
    transition: all var(--transition);
}

.video-placeholder::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    transition: background var(--transition);
}

.video-placeholder:hover::before {
    background: rgba(0, 0, 0, 0.2);
}

.video-placeholder:hover .play-button {
    transform: scale(1.1);
}

.play-button {
    position: relative;
    z-index: 1;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition);
    box-shadow: 0 4px 20px rgba(34,139,230,0.4);
}

.play-button svg {
    width: 28px;
    height: 28px;
    margin-left: 3px;
}

.video-placeholder p {
    color: var(--gray-300);
    font-size: 0.9rem;
    font-weight: 500;
}

/* ===== Trust ===== */
.trust-section {
    padding: 80px 0;
}

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

.trust-quote blockquote {
    font-size: 1.35rem;
    line-height: 1.6;
    color: var(--gray-800);
    font-weight: 400;
    font-style: italic;
    margin-bottom: 16px;
    position: relative;
    padding-left: 24px;
    border-left: 3px solid var(--blue);
}

.trust-quote cite {
    font-size: 0.9rem;
    color: var(--gray-500);
    font-style: normal;
    padding-left: 24px;
}

.trust-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 1rem;
    color: var(--gray-700);
}

.trust-check {
    color: var(--blue);
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* ===== FAQ ===== */
.faq-section {
    padding: 80px 0 100px;
    background: var(--gray-50);
}

.faq-list {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: border-color var(--transition);
}

.faq-item:hover {
    border-color: var(--gray-300);
}

.faq-item.open {
    border-color: var(--blue);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    text-align: left;
    font-family: inherit;
    line-height: 1.4;
}

.faq-chevron {
    width: 20px;
    height: 20px;
    color: var(--gray-500);
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-item.open .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--blue) 0%, var(--violet) 100%);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.cta-content > p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.85);
    margin-bottom: 32px;
    line-height: 1.7;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.cta-note {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
}

/* ===== Footer ===== */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--gray-200);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--gray-900);
}

.footer-brand .logo-icon {
    height: 28px;
    width: auto;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    text-decoration: none;
    color: var(--gray-500);
    font-size: 0.85rem;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--blue);
}

.footer-copy {
    width: 100%;
    text-align: center;
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: 20px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.25rem;
    }

    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .trust-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .hero-actions {
        flex-direction: column;
    }

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

    .workflow-steps {
        flex-direction: column;
        align-items: center;
    }

    .step-arrow {
        transform: rotate(90deg);
        margin: 0;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .cta-content h2 {
        font-size: 1.75rem;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
    }

    .container {
        padding: 0 16px;
    }

    .benefit-card {
        padding: 24px;
    }

    .faq-question {
        padding: 16px 20px;
        font-size: 0.95rem;
    }

    .faq-answer p {
        padding: 0 20px 16px;
    }
}

/* ===== Animations ===== */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile nav open */
.nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    padding: 24px;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-md);
    gap: 16px;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}