/* 
   Modern VC Startup Theme - Refined "Pro" Aesthetic
   AI Marketing Studio 
*/

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-soft: rgba(37, 99, 235, 0.08);
    
    /* Neutral palette - clean & crisp */
    --zinc-50: #fafafa;
    --zinc-100: #f4f4f5;
    --zinc-200: #e4e4e7;
    --zinc-300: #d4d4d8;
    --zinc-400: #a1a1aa;
    --zinc-500: #71717a;
    --zinc-600: #52525b;
    --zinc-700: #3f3f46;
    --zinc-800: #27272a;
    --zinc-900: #18181b;
    --zinc-950: #09090b;

    --bg-main: #ffffff;
    --text-main: var(--zinc-950);
    --text-muted: var(--zinc-500);
    --border: var(--zinc-200);
    
    --container-width: 1000px; /* Wider for image */
    --radius-2xl: 24px;
    --radius-xl: 16px;
    --radius-lg: 12px;
    --radius-md: 8px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-main);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* --- Refined Background (Less "AI Glow", More "Studio Light") --- */
.bg-canvas {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
    background: #fff;
}

.bg-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0,0,0,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
}

.bg-light {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 1400px;
    height: 800px;
    background: radial-gradient(circle at 50% 50%, rgba(37, 99, 235, 0.03) 0%, transparent 60%);
    filter: blur(80px);
}

/* --- Layout --- */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

.section-sm {
    padding: 60px 0;
}

@media (max-width: 640px) {
    .section { padding: 60px 0; }
}

/* --- Typography --- */
h1 {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--zinc-900);
}

h2 {
    font-size: clamp(32px, 5vw, 42px);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 20px;
}

h3 {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--zinc-900);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-soft);
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 28px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.subheadline {
    font-size: clamp(18px, 3vw, 20px);
    color: var(--text-muted);
    margin-bottom: 40px;
    font-weight: 450;
    line-height: 1.5;
    max-width: 600px;
}

.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* --- Buttons --- */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 0 32px;
    height: 56px;
    background: var(--zinc-900);
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all 0.2s cubic-bezier(0.2, 0, 0, 1);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.cta-button:hover {
    background: #000;
    transform: translateY(-1px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.cta-button.primary {
    background: var(--primary);
}

.cta-button.primary:hover {
    background: var(--primary-dark);
}

.micro-text {
    font-size: 13px;
    color: var(--zinc-500);
    margin-top: 16px;
}

/* --- Hero Section & Image --- */
.hero-content {
    max-width: 720px;
    margin: 0 auto 60px;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 
        0 20px 40px -10px rgba(0,0,0,0.1), 
        0 0 0 1px rgba(0,0,0,0.05);
    background: var(--zinc-100);
    margin-top: -20px; /* Pull closer to text */
}

.hero-image-wrapper img {
    display: block;
    width: 100%;
    height: auto;
    transform: scale(1.01); /* Prevent pixel gaps */
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(255,255,255,0.1), transparent);
    pointer-events: none;
}

/* --- Refined Problem Section (Problem Cards) --- */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.problem-card {
    background: #fff;
    border: 1px solid var(--zinc-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.problem-card:hover {
    border-color: var(--zinc-300);
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.problem-icon {
    width: 40px;
    height: 40px;
    background: var(--zinc-50);
    border: 1px solid var(--zinc-100);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--zinc-700);
}

.problem-card p {
    font-size: 16px;
    font-weight: 500;
    color: var(--zinc-800);
    line-height: 1.5;
}

@media (max-width: 640px) {
    .problem-grid { grid-template-columns: 1fr; }
}

/* --- Market Reality / Proof Section --- */
.market-proof-section {
    background: var(--zinc-50);
    border-top: 1px solid var(--zinc-200);
    border-bottom: 1px solid var(--zinc-200);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 40px;
    text-align: left;
}

.stat-item h3 {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.stat-item p {
    font-size: 14px;
    color: var(--zinc-600);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .stat-grid { grid-template-columns: 1fr; gap: 32px; text-align: center; }
}

/* --- Solution & Outcomes --- */
.solution-container {
    max-width: 800px;
    margin: 0 auto;
}

.outcome-list {
    display: grid;
    gap: 16px;
    margin-top: 48px;
}

.outcome-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 24px;
    background: #fff;
    border: 1px solid var(--zinc-200);
    border-radius: var(--radius-lg);
    transition: border-color 0.2s;
}

.outcome-item:hover {
    border-color: var(--primary);
}

.check-circle {
    width: 24px;
    height: 24px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}

.check-circle svg {
    width: 14px;
    height: 14px;
}

/* --- Pricing (Clean & Pro) --- */
.pricing-wrapper {
    background: var(--zinc-900);
    border-radius: var(--radius-2xl);
    padding: 64px 24px;
    color: #fff;
    position: relative;
    overflow: hidden;
    max-width: 800px;
    margin: 0 auto;
}

.pricing-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.2) 0%, transparent 70%);
    pointer-events: none;
}

.price-display {
    font-size: 64px;
    font-weight: 800;
    letter-spacing: -0.04em;
    margin: 24px 0;
    line-height: 1;
}

/* --- Timeline / How It Works --- */
.timeline-wrapper {
    max-width: 680px;
    margin: 60px auto 0;
    position: relative;
}

/* Vertical line */
.timeline-wrapper::before {
    content: '';
    position: absolute;
    left: 24px; /* Center of the circle (50px width / 2) */
    top: 25px;
    bottom: 50px;
    width: 1px;
    background: var(--zinc-200);
    z-index: 0;
}

.timeline-step {
    display: flex;
    gap: 32px;
    margin-bottom: 48px;
    position: relative;
    z-index: 1;
}

.step-marker {
    width: 48px;
    height: 48px;
    background: #fff;
    border: 1px solid var(--zinc-200);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--zinc-900);
    font-size: 16px;
    flex-shrink: 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.step-content {
    text-align: left;
    padding-top: 10px;
}

.step-content p {
    color: var(--zinc-500);
    font-size: 15px;
}

/* --- Utility --- */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    background: #fff;
    color: var(--zinc-900);
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.reveal {
    animation: fadeInUp 0.6s cubic-bezier(0.2, 0, 0, 1) forwards;
}

.d-100 { animation-delay: 100ms; opacity: 0; }
.d-200 { animation-delay: 200ms; opacity: 0; }
.d-300 { animation-delay: 300ms; opacity: 0; }