:root {
    --bg-main: #f9fafb;
    --bg-card: #ffffff;
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
    --border-color: #f3f4f6;
    --accent: #10b981;
    --accent-light: #ecfdf5;
    --accent-dark: #047857;
    --btn-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    --btn-gradient-hover: linear-gradient(135deg, #4338ca 0%, #6d28d9 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --transition-all: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--bg-main);
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Typography & General Styles */
h1, h2, h3, h4 {
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.25;
}

p {
    color: var(--text-secondary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-all);
}

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

.section {
    padding: 96px 0;
}

.section-alt {
    background-color: #ffffff;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.badge {
    display: inline-flex;
    align-items: center;
    background-color: var(--accent-light);
    color: var(--accent-dark);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    margin-bottom: 20px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.section-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 64px auto;
}

.section-title {
    font-size: 2.25rem;
    margin-bottom: 16px;
}

.section-subtext {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-all);
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--btn-gradient);
    color: white !important;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
    background: var(--btn-gradient-hover);
}

.btn-secondary {
    background-color: white;
    border-color: #d1d5db;
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: #f9fafb;
    border-color: #9ca3af;
    transform: translateY(-2px);
}

/* Sticky Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.03);
    transition: var(--transition-all);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.nav-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
    display: block;
}

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

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.nav-link:hover {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-all);
}

/* Mobile Menu Panel */
.mobile-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background-color: white;
    border-bottom: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 999;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
}

.mobile-nav.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.mobile-nav .nav-link {
    font-size: 1.1rem;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

/* Hero Section */
.hero {
    padding-top: 140px;
    padding-bottom: 96px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
}

.hero-content {
    max-width: 580px;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.15;
    margin-bottom: 24px;
    font-weight: 800;
}

.hero-subtext {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

/* Right Side: Hero Visual Mockup */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mockup-container {
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 460px;
    padding: 24px;
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 10;
}

/* Mockup Components: Message -> AI -> Task -> Calendar -> Notification */
.mockup-flow {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* WhatsApp Message Bubble Style */
.mockup-wa {
    background-color: #efeae2; /* WhatsApp background look */
    border-radius: var(--radius-md);
    padding: 12px;
    border: 1px solid #e2ddd5;
    box-shadow: var(--shadow-sm);
    position: relative;
    font-size: 0.875rem;
}

.mockup-wa-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding-bottom: 4px;
}

.mockup-wa-avatar {
    width: 24px;
    height: 24px;
    background-color: #128c7e;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.65rem;
    font-weight: bold;
}

.mockup-wa-name {
    font-weight: 700;
    color: #075e54;
}

.mockup-wa-body {
    background-color: #ffffff;
    padding: 8px 12px;
    border-radius: 0 12px 12px 12px;
    display: inline-block;
    max-width: 90%;
    color: #111827;
    position: relative;
    box-shadow: 0 1px 1px rgba(0,0,0,0.1);
}

.mockup-wa-highlight {
    background-color: #fef08a; /* Yellow highlight for deadline */
    font-weight: 600;
    padding: 1px 4px;
    border-radius: 2px;
}

.mockup-wa-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: right;
    margin-top: 4px;
}

/* AI Status Indicator */
.mockup-ai-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    padding: 6px 12px;
    background-color: rgba(79, 70, 229, 0.08);
    border: 1px dashed rgba(79, 70, 229, 0.3);
    border-radius: var(--radius-full);
    width: fit-content;
    margin: 0 auto;
    animation: pulse-ai 2s infinite;
}

@keyframes pulse-ai {
    0%, 100% { opacity: 0.8; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.03); }
}

/* Notion/Linear style Task Card */
.mockup-task {
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mockup-task-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mockup-task-badge {
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.mockup-task-priority {
    font-size: 0.75rem;
    color: #ef4444;
    background-color: #fef2f2;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.mockup-task-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.mockup-task-details {
    display: flex;
    gap: 12px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.mockup-task-detail-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Calendar Event Mini sheet */
.mockup-calendar {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px;
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: 12px;
    align-items: center;
}

.mockup-cal-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 48px;
    background-color: #f3f4f6;
    border-radius: var(--radius-sm);
    border-top: 4px solid var(--primary);
}

.mockup-cal-month {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.mockup-cal-day {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

.mockup-cal-event {
    flex: 1;
    font-size: 0.875rem;
}

.mockup-cal-event-title {
    font-weight: 600;
    color: var(--text-primary);
}

.mockup-cal-event-time {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Push Notification */
.mockup-notification {
    background-color: rgba(255, 255, 255, 0.95);
    border-left: 4px solid var(--accent);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    display: flex;
    gap: 10px;
    align-items: center;
    border-top: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.mockup-notif-icon {
    font-size: 1.25rem;
    color: var(--accent);
}

.mockup-notif-text {
    font-size: 0.8rem;
}

.mockup-notif-title {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

/* Background elements for Hero visual */
.hero-bg-blob {
    position: absolute;
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.08) 0%, rgba(124, 58, 237, 0.03) 70%, transparent 100%);
    top: -50px;
    right: -50px;
    border-radius: var(--radius-full);
    z-index: 1;
}

/* Problem Section */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.problem-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-all);
}

.problem-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.problem-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background-color: #fee2e2;
    color: #ef4444;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 24px;
}

.problem-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.problem-card p {
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Solution Section */
.solution-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    max-width: 960px;
    margin: 0 auto;
}

.solution-step {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px 20px;
    box-shadow: var(--shadow-sm);
    flex: 1;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.solution-step-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.solution-step-icon.wa {
    background-color: rgba(18, 140, 126, 0.1);
    color: #128c7e;
}

.solution-step-icon.ai {
    background-color: rgba(124, 58, 237, 0.1);
    color: #7c3aed;
}

.solution-step-icon.task {
    background-color: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
}

.solution-step-icon.remind {
    background-color: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.solution-step h4 {
    font-size: 1rem;
    font-weight: 700;
}

.solution-arrow {
    color: var(--text-muted);
    font-size: 1.25rem;
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.feature-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-all);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-img-wrapper {
    width: 100%;
    height: 180px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-all);
}

.feature-card:hover .feature-img {
    transform: scale(1.04);
}

.feature-card h3 {
    font-size: 1.35rem;
}

.feature-card p {
    font-size: 0.975rem;
    line-height: 1.6;
}

/* How It Works Section */
.steps-layout {
    display: flex;
    justify-content: space-between;
    gap: 40px;
}

.step-card {
    flex: 1;
    position: relative;
    padding-top: 24px;
}

.step-number {
    position: absolute;
    top: -20px;
    left: 0;
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1;
    color: #e5e7eb;
    opacity: 0.6;
    z-index: 1;
}

.step-card-content {
    position: relative;
    z-index: 2;
}

.step-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    margin-top: 12px;
}

.step-card p {
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Trust Section */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.trust-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.trust-icon-box {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background-color: var(--accent-light);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.trust-card h3 {
    font-size: 1.15rem;
}

.trust-card p {
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Final CTA Section */
.cta-box {
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 64px 48px;
    text-align: center;
    box-shadow: var(--shadow-xl);
    max-width: 860px;
    margin: 0 auto;
}

.cta-box h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.cta-box p {
    font-size: 1.125rem;
    margin-bottom: 32px;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

.cta-form {
    display: flex;
    justify-content: center;
    gap: 12px;
    max-width: 480px;
    margin: 0 auto;
}

.cta-input {
    flex: 1;
    padding: 14px 20px;
    border-radius: var(--radius-md);
    border: 1px solid #d1d5db;
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: var(--transition-all);
}

.cta-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Footer */
footer {
    padding: 48px 0;
    background-color: #ffffff;
    border-top: 1px solid var(--border-color);
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
}

.footer-logo {
    height: 28px;
    width: auto;
    object-fit: contain;
    display: block;
}

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

.footer-link {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

/* Animation Reveal on Scroll */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Team Section Styling */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    max-width: 1140px;
    margin: 0 auto;
}

.team-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-all);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.team-photo {
    width: 90px;
    height: 90px;
    border-radius: var(--radius-full);
    object-fit: cover;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--border-color);
}

.team-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.team-role-tag {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    background-color: rgba(79, 70, 229, 0.08);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    margin-bottom: 20px;
    display: inline-block;
}

.team-socials {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.team-socials a {
    color: var(--text-muted);
    font-size: 1.2rem;
    transition: var(--transition-all);
}

.team-socials a:hover {
    color: var(--primary);
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
        margin: 0 auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-visual {
        order: 2;
    }

    .problem-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }

    .features-grid {
        grid-template-columns: 1fr;
        max-width: 580px;
        margin: 0 auto;
    }

    .solution-flow {
        flex-direction: column;
        gap: 16px;
        max-width: 320px;
    }

    .solution-arrow {
        transform: rotate(90deg);
        margin: 8px 0;
    }

    .steps-layout {
        flex-direction: column;
        gap: 48px;
        max-width: 400px;
        margin: 0 auto;
    }

    .trust-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .team-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 680px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.75rem;
    }

    .nav-menu {
        display: none;
    }

    .nav-actions {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .cta-box {
        padding: 40px 24px;
    }

    .cta-form {
        flex-direction: column;
    }

    footer .container {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .team-grid {
        grid-template-columns: 1fr;
        max-width: 320px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.25rem;
    }

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

    .hero-buttons .btn {
        width: 100%;
    }
}