/* =============================================
   WaBot SaaS — Premium Landing Page Styles
   ============================================= */

:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #52525b;
    --accent-green: #10b981;
    --accent-glow: rgba(16, 185, 129, 0.4);
    --radius-lg: 16px;
    --radius-pill: 9999px;
    --font-heading: 'Inter', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body.landing-body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-heading);
    overflow-x: hidden;
    /* Subtle grid background */
    background-image: 
        radial-gradient(circle at top, rgba(16,185,129,0.15) 0%, transparent 40%),
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 100% 100%, 40px 40px, 40px 40px;
    background-position: top center, center center, center center;
}

/* ─── Navigation ─── */
.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.04em;
}
.logo-img {
    height: 32px;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}
.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}
.nav-links a:hover {
    color: var(--text-primary);
}
.nav-btn-login {
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-pill);
}
.nav-btn-login:hover {
    background: rgba(255, 255, 255, 0.1);
}
.nav-btn-register {
    padding: 8px 20px;
    background: var(--text-primary);
    color: #000 !important;
    border-radius: var(--radius-pill);
    font-weight: 600;
}
.nav-btn-register:hover {
    background: #e4e4e7;
    transform: translateY(-1px);
}

/* ─── Hero Section ─── */
.hero-section {
    padding: 180px 32px 100px;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--radius-pill);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-green);
    margin-bottom: 24px;
    box-shadow: 0 0 20px rgba(16,185,129,0.1);
}
.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.05;
    color: var(--text-primary);
    margin-bottom: 24px;
    letter-spacing: -0.05em;
}
.hero-highlight {
    background: linear-gradient(135deg, #10b981, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}
.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 90%;
    font-weight: 400;
}
.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}
.btn-lg {
    padding: 16px 36px;
    font-size: 1.1rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}
.btn-primary {
    background: var(--text-primary);
    color: #000;
    box-shadow: 0 0 20px rgba(255,255,255,0.1);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(255,255,255,0.2);
    background: #e4e4e7;
}
.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}
.hero-note {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ─── Abstract Visual / Animations ─── */
.hero-visual {
    position: relative;
    width: 100%;
    height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.abstract-phone {
    width: 260px;
    height: 520px;
    background: #000;
    border: 2px solid #222;
    border-radius: 40px;
    position: absolute;
    left: 20px;
    z-index: 10;
    box-shadow: 0 20px 80px rgba(0,0,0,0.8), 0 0 0 1px rgba(255,255,255,0.05);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.phone-notch {
    width: 100px;
    height: 24px;
    background: #111;
    border-radius: 12px;
    margin: 0 auto 12px;
}
.chat-bubble {
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 0.85rem;
    max-width: 85%;
    opacity: 0;
    transform: translateY(10px);
    animation: fadeInUp 0.5s forwards;
}
.chat-bubble.bot {
    background: #1a1a1a;
    color: #fff;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}
.chat-bubble.user {
    background: var(--accent-green);
    color: #000;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
    font-weight: 500;
}

/* Delays for bubbles */
.b1 { animation-delay: 0.5s; }
.b2 { animation-delay: 1.5s; }
.b3 { animation-delay: 2.5s; }
.b4 { animation-delay: 3.5s; }

.abstract-dashboard {
    width: 380px;
    height: 280px;
    background: rgba(20,20,20,0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%) translateX(20px);
    z-index: 5;
    padding: 24px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
    gap: 16px;
    opacity: 0;
    animation: floatIn 1s forwards 4s, floatUpDown 6s ease-in-out infinite alternate 5s;
}

.dash-header {
    height: 20px;
    width: 40%;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
}
.dash-row {
    display: flex;
    gap: 12px;
}
.dash-col {
    flex: 1;
    height: 80px;
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-green);
    font-weight: 600;
    font-size: 0.9rem;
}
.dash-list {
    flex: 1;
    background: rgba(255,255,255,0.03);
    border-radius: 8px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.dash-item {
    height: 16px;
    background: rgba(255,255,255,0.05);
    border-radius: 4px;
    width: 100%;
}
.dash-item.green {
    width: 70%;
    background: var(--accent-green);
}

/* Connecting Line */
.connection-line {
    position: absolute;
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-green), transparent);
    right: 360px;
    top: 50%;
    opacity: 0;
    animation: fadeIn 0.5s forwards 4.5s;
}

@keyframes fadeInUp {
    to { opacity: 1; transform: translateY(0); }
}
@keyframes floatIn {
    from { opacity: 0; transform: translateY(-50%) translateX(40px); }
    to { opacity: 1; transform: translateY(-50%) translateX(20px); }
}
@keyframes floatUpDown {
    0% { transform: translateY(-50%) translateX(20px); }
    100% { transform: translateY(-54%) translateX(20px); }
}
@keyframes fadeIn {
    to { opacity: 1; }
}

/* ─── Metrics Section ─── */
.metrics-section {
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
    padding: 60px 0;
}
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}
.metric-item h4 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.05em;
}
.metric-item p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
}

/* ─── Common Sections ─── */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 32px;
}
.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.04em;
}
.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 64px;
    font-size: 1.2rem;
    max-width: 600px;
    margin-inline: auto;
}

/* ─── Features Section ─── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(16,185,129,0.1), transparent 50%);
    opacity: 0;
    transition: var(--transition);
}
.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(16,185,129,0.4);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.feature-card:hover::before {
    opacity: 1;
}
.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 24px;
    display: inline-block;
    background: rgba(255,255,255,0.05);
    padding: 16px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}
.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.feature-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

/* ─── How it works (Steps) ─── */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.step-card {
    text-align: left;
    padding: 32px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 24px;
    transition: var(--transition);
}
.step-card:hover {
    background: var(--bg-card);
    border-color: var(--border-color);
}
.step-number {
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.1);
    color: var(--text-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
}
.step-card:hover .step-number {
    background: var(--accent-green);
    color: #000;
    border-color: var(--accent-green);
}
.step-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}
.step-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ─── Pricing Section ─── */
.pricing-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto;
}
.pricing-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 48px;
    display: flex;
    flex-direction: column;
    position: relative;
}
.pricing-card.popular {
    border-color: var(--accent-green);
    box-shadow: 0 0 40px rgba(16,185,129,0.1);
}
.popular-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-green);
    color: #000;
    padding: 4px 16px;
    border-radius: var(--radius-pill);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
}
.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}
.price {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.05em;
}
.price span {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 500;
}
.pricing-header p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}
.pricing-features {
    list-style: none;
    margin-bottom: 48px;
    flex: 1;
}
.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-weight: 500;
}
.pricing-features li::before {
    content: '✓';
    color: var(--accent-green);
    font-weight: 800;
}
.pricing-card .btn-primary, .pricing-card .btn-secondary {
    text-align: center;
    width: 100%;
}

/* ─── Footer ─── */
.landing-footer {
    border-top: 1px solid var(--border-color);
    padding: 60px 32px;
    text-align: center;
    color: var(--text-secondary);
}

/* ─── Responsive ─── */
@media (max-width: 992px) {
    .hero-section {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 140px;
    }
    .hero-subtitle {
        margin: 0 auto 40px;
    }
    .hero-cta {
        justify-content: center;
    }
    .abstract-dashboard {
        display: none;
    }
    .abstract-phone {
        position: relative;
        left: 0;
        margin: 0 auto;
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}
@media (max-width: 768px) {
    .hero-title { font-size: 3rem; }
    .features-grid, .steps-grid, .pricing-grid {
        grid-template-columns: 1fr;
    }
    .nav-links { display: none; }
}