/* 
  AIDO Engine - Main Stylesheet
  Theme: Light / Minimal / Luxury
*/

:root {
    /* Colors */
    --color-primary: #0f172a; /* Deep Navy */
    --color-primary-light: #1e293b;
    --color-accent: #06b6d4; /* Glowing Cyan */
    --color-accent-hover: #0891b2;
    --color-silver: #94a3b8; /* Metallic tone */
    
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-card: #ffffff;

    --text-main: #334155;
    --text-dark: #0f172a;
    --text-light: #64748b;

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Shadow & Radius */
    --shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.05);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.05), 0 8px 10px -6px rgb(0 0 0 / 0.05);
    --radius: 8px;
    
    /* Layout */
    --container-width: 1200px;
    --spacing-md: 4rem;
    --spacing-lg: 8rem;
}

/* ================== RESET & BASE ================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

h1, h2, h3, h4, .font-heading {
    font-family: var(--font-heading);
    color: var(--text-dark);
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.text-center { text-align: center; }
.bg-light { background-color: var(--bg-light); }

/* Typography Utility */
.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.lead-text {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 3rem;
}

/* ================== BUTTONS ================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--bg-white);
}

.btn-primary:hover {
    background-color: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--bg-light);
    color: var(--color-primary);
}

.btn-secondary:hover {
    background-color: #e2e8f0;
}

.btn-outline {
    background-color: transparent;
    border-color: var(--color-primary);
    color: var(--color-primary);
}

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

/* ================== NAVBAR ================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #f1f5f9;
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo-img {
    height: 48px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-dark);
}

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

/* ================== HERO ================== */
.hero {
    padding: 12rem 0 8rem;
    background-color: var(--bg-white);
    text-align: center;
}

.hero-large-logo {
    height: 120px;
    width: auto;
    margin-bottom: 2rem;
    display: inline-block;
}

.hero-content {
    max-width: 900px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* ================== SECTIONS ================== */
.section {
    padding: var(--spacing-lg) 0;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

/* PROBLEM SECTION */
.feature-list {
    margin-top: 2rem;
}

.feature-list li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

.feature-list li::before {
    content: "•";
    color: var(--color-accent);
    font-size: 2rem;
    position: absolute;
    left: 0;
    top: -8px;
}

.problem-visual {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: relative;
}

.data-card {
    background: var(--bg-white);
    border: 1px solid #e2e8f0;
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.data-card.active {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
    transform: translateX(-1rem); /* Slight offset for pop */
}

.data-card .data-header {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.data-card .data-body {
    font-size: 1.1rem;
    font-weight: 500;
}

.data-card .data-body.blurred {
    filter: blur(0.8px);
    opacity: 0.55;
}

/* SOLUTION SECTION STATS */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.stat-box {
    padding: 3rem 1.5rem;
    background: var(--bg-light);
    border-radius: var(--radius);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.9rem;
}

/* SERVICES PRICING GRID */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-card {
    background: var(--bg-white);
    border: 1px solid #e2e8f0;
    border-radius: var(--radius);
    padding: 3rem 2rem;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.pricing-card.featured {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: scale(1.05); /* Make the middle one pop */
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--bg-white);
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #f1f5f9;
}

.card-header h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
}

.price span {
    font-size: 1rem;
    color: var(--text-light);
    font-weight: 500;
}

.card-body p {
    margin-bottom: 2rem;
    color: var(--text-light);
    min-height: 80px;
}

.service-features {
    margin-bottom: 3rem;
    flex-grow: 1;
}

.service-features li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.service-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

.pricing-card .btn {
    width: 100%;
}

/* CTA SECTION */
.cta-section {
    background-color: var(--color-primary);
    color: var(--bg-white);
    padding: 6rem 0;
}

.cta-title {
    color: var(--bg-white);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-subtitle {
    color: var(--color-silver);
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

.cta-form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.5rem;
    max-width: 500px;
    margin: 0 auto;
}

.form-inputs {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.input-field {
    padding: 1rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    width: 100%;
    font-size: 1rem;
    font-family: var(--font-body);
}

.input-field:focus {
    outline: 2px solid var(--color-accent);
}

/* FOOTER */
.footer {
    background-color: var(--bg-white);
    padding: 4rem 0 2rem;
    border-top: 1px solid #e2e8f0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.footer-logo {
    height: 40px;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--text-light);
    font-size: 0.9rem;
}

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

.footer-links a {
    color: var(--text-light);
    font-weight: 500;
}

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

.footer-bottom {
    text-align: center;
    color: var(--color-silver);
    font-size: 0.85rem;
}

/* ================== RESPONSIVE ================== */
@media (max-width: 992px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
    .pricing-card.featured {
        transform: scale(1);
    }
    .pricing-card.featured:hover {
        transform: translateY(-5px);
    }
}

@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero {
        padding: 8rem 0 4rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .navbar .nav-links {
        display: none; /* Hide on mobile for simplicity in this MVP */
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
}