:root {
    /* Solid Palette - No Neon */
    --c-green-900: #094C1F;
    --c-green-800: #096624;
    --c-green-600: #2F7D31;
    --c-green-400: #4AA04A;
    --c-purple-700: #6356A3;
    --c-light-green: #74D174; /* Used as solid accent, not glowing */
    --c-purple-300: #8D80F7;
    --c-off-white: #E8F4CF;
    --c-coral: #F18258;
    --c-yellow: #FFDD12;
    --bg-dark: #0f1110;
}

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

/* Subtle Noise Texture for Premium Agency Feel */
.noise-overlay {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    pointer-events: none; z-index: 9999; opacity: 0.04;
    background-image: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E');
}

body {
    background-color: var(--bg-dark);
    color: var(--c-off-white);
    font-family: 'Pretendard', 'Noto Sans KR', sans-serif;
    overflow-x: hidden;
    line-height: 1.6;
}

h1, h2, h3, .logo, .card-big {
    font-weight: 800;
    letter-spacing: -0.02em;
    word-break: keep-all;
    line-height: 1.35;
}

/* Removed Neon text-shadow. Replaced with solid accent color. */
.highlight { color: var(--c-light-green); }
.text-dark { color: #111 !important; }

/* Navbar */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%;
    padding: 24px 40px; display: flex; justify-content: space-between; align-items: center;
    z-index: 1000; mix-blend-mode: difference;
}
.logo { font-size: 1.8rem; color: var(--c-off-white); } /* Changed from green to white */

.btn-download {
    display: inline-block; background-color: var(--c-off-white); color: var(--bg-dark);
    text-decoration: none; padding: 16px 32px; border-radius: 8px; font-weight: 800; font-size: 1.1rem;
    border: 2px solid #000; box-shadow: 4px 4px 0px rgba(232,244,207,0.3);
    transition: transform 0.2s, box-shadow 0.2s;
}
.btn-download:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0px rgba(232,244,207,0.5); }
.btn-download.sm { padding: 10px 20px; font-size: 0.9rem; box-shadow: 2px 2px 0px rgba(232,244,207,0.3); }
.btn-download.huge { font-size: 1.4rem; padding: 20px 40px; }
.btn-download.huge span { font-size: 0.9rem; opacity: 0.8; font-family: 'Noto Sans KR'; }

.btn-outline {
    display: inline-block; color: var(--c-off-white); text-decoration: none;
    padding: 14px 28px; border-radius: 8px; font-weight: 600; border: 2px solid var(--c-off-white);
    transition: all 0.2s;
}
.btn-outline:hover { background: var(--c-off-white); color: var(--bg-dark); }

/* Hero */
.hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: space-between;
    padding: 120px 5% 60px; max-width: 1600px; margin: 0 auto; position: relative;
}
.hero-content { flex: 1; max-width: 700px; z-index: 2; }
.badge {
    display: inline-block; background: var(--c-green-900); padding: 8px 16px;
    border-radius: 4px; border: 1px solid var(--c-green-600);
    font-size: 0.9rem; font-weight: 600; margin-bottom: 24px; color: var(--c-off-white);
}
.hero-title { font-size: clamp(2.5rem, 5vw, 4.5rem); margin-bottom: 24px; font-weight: 800; letter-spacing: -0.03em; }
.hero-sub { font-size: 1.15rem; color: #bbb; margin-bottom: 40px; font-weight: 500; word-break: keep-all; }
.hero-actions { display: flex; gap: 16px; align-items: center; }

/* App Mockup (Refined, no glowing shadow) */
.hero-visual { flex: 1; position: relative; display: flex; justify-content: center; z-index: 1; }
.app-mockup {
    width: 340px; background: #161817; border-radius: 40px; border: 2px solid #333;
    padding: 24px; box-shadow: 20px 20px 0px rgba(0,0,0,0.5); /* Solid shadow */
    position: relative; font-family: 'Noto Sans KR', sans-serif;
}
.user-greeting h2 { font-size: 1.4rem; font-family: 'Noto Sans KR'; font-weight: 400; line-height: 1.3; }
.user-greeting strong { font-weight: 800; font-size: 1.6rem; }
.user-level { display: inline-block; margin-top: 8px; font-size: 0.75rem; background: var(--c-yellow); color: #000; font-weight: 800; padding: 4px 10px; border-radius: 20px; }

.mockup-card { background: #222; border-radius: 20px; padding: 20px; margin-top: 24px; margin-bottom: 16px; border: 1px solid #333; }
.mockup-card.primary { background: var(--c-green-900); border-color: var(--c-green-600); }
.card-title { font-size: 0.8rem; opacity: 0.8; margin-bottom: 8px; font-weight: 600; }
.card-title.flex-between { display: flex; justify-content: space-between; align-items: center; }
.card-title a { color: var(--c-light-green); text-decoration: none; font-size: 0.75rem; }
.card-big { font-size: 2.5rem; line-height: 1; margin-bottom: 8px; color: var(--c-off-white); }
.card-big small { font-size: 1rem; opacity: 0.7; font-family: 'Noto Sans KR'; font-weight: 700; }
.card-sub { font-size: 0.8rem; margin-bottom: 12px; }
.progress-bar { width: 100%; height: 6px; background: rgba(255,255,255,0.1); border-radius: 3px; }
.progress-bar .fill { height: 100%; background: var(--c-light-green); border-radius: 3px; }

.mission-list { list-style: none; }
.mission-list li { display: flex; align-items: center; font-size: 0.85rem; margin-bottom: 16px; font-weight: 600; }
.mission-list li:last-child { margin-bottom: 0; }
.mission-info { display: flex; align-items: center; gap: 8px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-light-green); }
.badge-done, .badge-auto { margin-left: auto; padding: 2px 8px; border-radius: 4px; font-size: 0.65rem; }
.badge-done { background: var(--c-green-800); color: var(--c-off-white); }
.badge-auto { background: var(--c-purple-700); color: var(--c-off-white); }
.point { margin-left: auto; color: var(--c-yellow); font-weight: 800; }

.mockup-nav { display: flex; justify-content: space-between; margin-top: 24px; font-size: 0.75rem; text-align: center; font-weight: 700; color: #666; }
.mockup-nav .active { color: var(--c-off-white); }

.float-badge { position: absolute; background: #fff; color: #111; border: 2px solid #000; padding: 12px 20px; border-radius: 8px; font-size: 0.9rem; font-weight: 700; white-space: nowrap; box-shadow: 4px 4px 0px rgba(0,0,0,1); z-index: 10; display: flex; align-items: center; gap: 10px; }
.badge-accent { background: var(--c-purple-300); color: #000; padding: 2px 8px; border-radius: 4px; font-size: 0.75rem; }
.fb-1 { top: 15%; right: -50px; }
.fb-2 { bottom: 25%; left: -60px; }
.fb-2 .badge-accent { background: var(--c-coral); }

/* Features (Horizontal) */
.features-wrapper { padding: 120px 0; overflow: hidden; background: #161817; border-top: 1px solid #333; }
.features-header { padding: 0 5%; margin-bottom: 60px; max-width: 1000px; }
.features-header h2 { font-size: clamp(2rem, 4vw, 3.5rem); margin-bottom: 20px; font-weight: 800; letter-spacing: -0.02em; }
.features-header p { font-size: 1.25rem; color: #aaa; font-weight: 500; word-break: keep-all; }

.features-container { display: flex; padding: 0 5%; gap: 40px; width: max-content; }
.feat-card { width: 450px; height: 550px; border-radius: 16px; border: 2px solid #000; padding: 40px; display: flex; flex-direction: column; flex-shrink: 0; box-shadow: 12px 12px 0px rgba(0,0,0,1); position: relative; overflow: hidden; }
.bg-green { background-color: var(--c-green-800); }
.bg-purple { background-color: var(--c-purple-700); }
.bg-darkgreen { background-color: var(--c-green-900); }
.bg-lightpurple { background-color: var(--c-purple-300); }
.bg-yellow { background-color: var(--c-yellow); }
.bg-coral { background-color: var(--c-coral); }

.feat-num { font-size: 1rem; font-weight: 800; opacity: 0.8; letter-spacing: 1px; margin-bottom: auto; }
.feat-card h3 { font-size: 1.8rem; font-weight: 800; line-height: 1.4; word-break: keep-all; margin-bottom: 20px; z-index: 2; letter-spacing: -0.01em; }
.feat-card p { font-size: 1.05rem; font-weight: 500; opacity: 0.9; word-break: keep-all; z-index: 2; }

/* Abstract shapes instead of emojis */
.feat-abstract-shape { position: absolute; bottom: -20px; right: -20px; opacity: 0.3; z-index: 1; }
.shape-1 { width: 150px; height: 150px; border-radius: 50%; background: #000; }
.shape-2 { width: 120px; height: 120px; background: #000; transform: rotate(45deg); }
.shape-3 { width: 200px; height: 100px; border-radius: 50px; background: #000; transform: rotate(-20deg); }
.shape-4 { width: 140px; height: 140px; border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; background: #fff; }
.shape-5 { width: 0; height: 0; border-left: 80px solid transparent; border-right: 80px solid transparent; border-bottom: 140px solid #fff; transform: rotate(15deg); }
.shape-6 { width: 130px; height: 130px; border-radius: 20px; border: 20px solid #fff; }

/* Why Section */
.why-section { padding: 120px 5%; max-width: 1400px; margin: 0 auto; }
.section-title { font-size: clamp(2rem, 4vw, 3.5rem); margin-bottom: 80px; text-align: center; font-weight: 800; letter-spacing: -0.02em; }

.testimonial { background: var(--c-green-900); border: 2px solid #000; padding: 60px; border-radius: 16px; text-align: center; margin-bottom: 120px; box-shadow: 12px 12px 0px rgba(0,0,0,1); }
.testimonial p { font-size: 1.5rem; font-weight: 700; line-height: 1.5; margin-bottom: 30px; color: var(--c-off-white); }
.author { font-size: 1.1rem; color: #888; }
.author strong { color: var(--c-yellow); font-size: 1.3rem; }

.pillars-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 60px 40px; }
.pillar-icon { font-size: 2rem; font-weight: 800; color: var(--bg-dark); background: var(--c-off-white); width: 60px; height: 60px; display: flex; align-items: center; justify-content: center; border-radius: 50%; margin-bottom: 20px; border: 2px solid #000; box-shadow: 4px 4px 0px #000; }
.pillar h3 { font-size: 1.4rem; font-weight: 800; margin-bottom: 16px; }
.pillar p { color: #aaa; font-size: 1rem; line-height: 1.6; }

/* CTA */
.cta-section { padding: 160px 5%; background: var(--c-off-white); color: var(--bg-dark); text-align: center; border-top: 2px solid #000; }
.cta-section h2 { font-size: clamp(2.5rem, 5vw, 4rem); margin-bottom: 24px; color: var(--bg-dark); font-weight: 800; letter-spacing: -0.03em; }
.cta-section p { font-size: 1.25rem; font-weight: 600; margin-bottom: 60px; color: #444; }

.cta-flex { display: flex; justify-content: center; align-items: center; gap: 40px; flex-wrap: wrap; }
.qr-box { background: #fff; padding: 24px; border-radius: 12px; color: #000; text-align: center; border: 2px solid #000; box-shadow: 8px 8px 0px rgba(0,0,0,1); }
.qr-box a { display: block; line-height: 0; margin-bottom: 16px; }
.qr-image { width: 150px; height: 150px; display: block; object-fit: contain; }
.qr-box p { font-size: 0.95rem; font-weight: 800; margin: 0; color: #333; }

/* Responsive / Mobile */
@media (max-width: 900px) {
    .hero { flex-direction: column; padding-top: 120px; text-align: center; justify-content: center; }
    .hero-content { margin-bottom: 60px; max-width: 100%; }
    .hero-actions { justify-content: center; flex-wrap: wrap; }
    .app-mockup { width: 100%; max-width: 340px; }

    .features-wrapper { padding: 80px 0; }
    .features-container { flex-direction: column; width: 100%; align-items: center; gap: 30px; }
    .feat-card { width: 100%; max-width: 450px; height: auto; min-height: 350px; padding: 30px; }

    .why-section { padding: 80px 5%; }
    .testimonial { padding: 40px 20px; margin-bottom: 80px; }
    .testimonial p { font-size: 1.2rem; }

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

    .navbar { padding: 16px 20px; }
    .logo { font-size: 1.4rem; }
    .btn-download.sm { padding: 8px 12px; font-size: 0.8rem; }
}