:root {
    --bg-dark: #121212;
    --bg-darker: #0a0a0a;
    --text-main: #FFFFFF;
    --text-muted: #a0a0a0;
    --silver: #C0C0C0;
    --accent-red: #E63946; /* Harsh surgical red */
    --border-color: #333333;
    
    --font-family: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: auto; /* Handled smoothly by script.js */
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-family);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    text-transform: uppercase;
    letter-spacing: -0.03em;
    font-weight: 800;
}

img {
    max-width: 100%;
    display: block;
}

.img-responsive {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    text-decoration: none;
    letter-spacing: 0.05em;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    background: var(--text-main);
    color: var(--bg-dark);
}

.btn-primary {
    background-color: var(--accent-red);
    color: var(--text-main);
}

.btn-primary:hover {
    background-color: #ff4d5a;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(230, 57, 70, 0.4);
}

/* Segment 1: Header */
.header {
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(18, 18, 18, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: 0.1em;
}

.logo-img {
    height: 38px; /* Slightly larger for SVG clarity */
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a:not(.btn) {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color 0.3s ease;
}

.nav-links a:not(.btn):hover {
    color: var(--text-main);
}

/* Segment 2: Hero */
.hero {
    padding: 8rem 0;
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 4.5rem;
    line-height: 1.05;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-weight: 500;
    max-width: 450px;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    border-radius: 12px;
}

/* Segment 3: The Problem */
.problem {
    background-color: var(--bg-darker);
    padding: 8rem 0;
    text-align: center;
}

.problem-content {
    max-width: 800px;
    margin: 0 auto;
}

.problem-content p {
    font-size: 2rem;
    font-weight: 500;
    line-height: 1.5;
    color: var(--silver);
    margin-bottom: 1.5rem;
}

.problem-content p:last-child {
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 0;
}

/* Segment 4: The Solution */
.solution {
    padding: 8rem 0;
}

.solution-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.solution-text h2 {
    font-size: 3rem;
    line-height: 1.1;
    margin-bottom: 2rem;
}

.solution-text p {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.drop-shadow {
    box-shadow: 0 20px 50px rgba(0,0,0,0.6);
    border-radius: 12px;
}

.highlight-rule {
    color: var(--accent-red);
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    margin-top: 1.5rem;
    border-left: 2px solid var(--accent-red);
    padding-left: 1.5rem;
    line-height: 1.4;
}

/* Segment 5: Features */
.features {
    position: relative;
    padding: 10rem 0;
    background-color: #111;
    /* Optional: Adding background image setup for image 14 */
    background-image: url('img/image14.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.features-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(18, 18, 18, 0.88); /* Deep dark overlay */
    z-index: 1;
}

.features-container {
    position: relative;
    z-index: 2;
}

.features h2 {
    font-size: 3rem;
    margin-bottom: 4rem;
    text-align: center;
}

.features-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    background: rgba(255, 255, 255, 0.03);
    padding: 1.5rem 2rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.features-list li:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.06);
}

.features-list .icon {
    font-size: 1.75rem;
    color: var(--silver);
}

.features-list span:last-child {
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.05em;
}

/* Segment 6: Final CTA */
.final-cta {
    background-color: #000000; /* Matte black */
    padding: 12rem 0;
    text-align: center;
}

.cta-container {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.final-logo {
    height: 80px; /* Stronger presence in footer CTA */
    margin-bottom: 2.5rem;
}

.final-cta h2 {
    font-size: 4rem;
    margin-bottom: 3rem;
    color: var(--text-main);
    line-height: 1;
}

.email-capture-form {
    display: flex;
    width: 100%;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.email-input {
    flex: 1;
    padding: 1.25rem 1.5rem;
    font-size: 1.1rem;
    font-family: var(--font-family);
    background-color: #1a1a1a;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: 4px;
    outline: none;
    transition: border-color 0.3s ease;
}

.email-input:focus {
    border-color: var(--text-muted);
}

.email-capture-form .btn {
    border-radius: 4px; /* match input */
    white-space: nowrap;
}

.pricing-clarity {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Segment 7: Footer */
.footer {
    background-color: #000000;
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #555;
    font-size: 0.85rem;
    font-weight: 500;
}

.social-links {
    display: flex;
    gap: 2rem;
}

.social-links a {
    color: #555;
    text-decoration: none;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--text-main);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-container, .solution-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

    .hero-text h1 {
        font-size: 3.5rem;
    }

    .hero-text p {
        margin: 0 auto 2.5rem;
    }

    .solution-text h2 {
        font-size: 2.5rem;
    }

    .email-capture-form {
        flex-direction: column;
    }

    .email-capture-form .btn {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .nav-links a:not(.btn) {
        display: none;
    }
    .problem-content p {
        font-size: 1.5rem;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .final-cta h2 {
        font-size: 2.5rem;
    }
}