:root {
    /* Warm Dark Navy Palette */
    --bg-color: #0f172a;
    /* Rich dark slate/navy */
    --bg-surface: #1e293b;
    /* Slightly lighter surface */
    --bg-surface-hover: #334155;
    /* Interactive state */

    --text-primary: #f8fafc;
    /* Clean white/silver */
    --text-secondary: #cbd5e1;
    /* Silver/Slate for secondary */
    --text-muted: #94a3b8;
    /* Muted silver */

    --accent-cyan: #0ea5e9;
    /* Vibrat but softer cerulean/cyan */
    --accent-cyan-hover: #38bdf8;
    --accent-primary: #124076;
    /* Logo Navy accent */
    --wpp-green: #25d366;

    --border-color: #334155;

    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

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

/* Typography */
h1,
h2,
h3,
h4 {
    font-weight: 600;
    letter-spacing: -0.025em;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.mono-text {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-muted);
}

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

.section {
    padding: 5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.section:last-child {
    border-bottom: none;
}

.text-center {
    text-align: center;
}

/* Navigation */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-color);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--accent-cyan);
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.2s ease;
    font-family: var(--font-sans);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent-cyan);
    color: #fff;
    border: 1px solid var(--accent-cyan);
}

.btn-primary:hover {
    background-color: var(--accent-cyan-hover);
}

/* In dark mode, btn-outline needs to be light */
.btn-outline {
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

.btn-wpp {
    background-color: var(--wpp-green);
    color: #fff;
    border: 1px solid var(--wpp-green);
}

.btn-wpp:hover {
    opacity: 0.9;
}

/* Hero */
.hero {
    padding: 6rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-color) 100%);
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.hero-t1 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.hero-t2 {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.hero-t3 {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 3rem auto;
}

/* Standard Section Layout */
.content-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.content-reverse {
    direction: rtl;
}

.content-reverse>* {
    direction: ltr;
}

/* Grid */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.agent-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    transition: transform 0.2s ease, box-shadow 0.2s;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
    text-align: left;
}

.agent-card:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
}

.agent-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.agent-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

/* Features List */
.feature-list {
    list-style: none;
    margin-top: 2rem;
}

.feature-list li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.feature-list li::before {
    content: '✓';
    color: var(--accent-cyan);
    position: absolute;
    left: 0;
    font-weight: bold;
    font-size: 1.2rem;
}

.cta-section {
    text-align: center;
    padding: 5rem;
    background-color: var(--bg-surface);
    border-radius: 12px;
    margin: 4rem 0;
    border: 1px solid var(--border-color);
}

/* Fix inputs for dark mode */
input,
textarea {
    background: var(--bg-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

input::placeholder,
textarea::placeholder {
    color: var(--text-muted);
}