/* Base Settings */
:root {
    --bg-color: #0f1015;
    --text-color: #ffffff;
    --text-muted: #a0a4b8;
    --primary: #7b2cbf;
    --primary-glow: rgba(123, 44, 191, 0.5);
    --secondary: #3a86ff;
    --accent: #ff006e;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --font-family: 'Inter', sans-serif;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

/* Typography */
h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(to right, #ffffff, #a0a4b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 12px;
}

p {
    color: var(--text-muted);
}

.section-title {
    text-align: center;
    background: linear-gradient(135deg, #fff, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 48px auto;
    font-size: 1.1rem;
}

/* Buttons */
.btn-primary, .btn-primary-small, .btn-large {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-weight: 600;
    text-align: center;
    border-radius: 12px;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0; left: -100%; width: 50%; height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.3), transparent);
    transform: skewX(-20deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { left: -100%; }
    20% { left: 200%; }
    100% { left: 200%; }
}

.btn-primary:hover, .btn-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--primary-glow);
}

.btn-primary {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.btn-primary-small {
    padding: 10px 20px;
    font-size: 0.9rem;
    border-radius: 8px;
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.2rem;
    border-radius: 16px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    padding: 20px 0;
    background: rgba(15, 16, 21, 0.8);
    backdrop-filter: blur(12px);
    z-index: 100;
    border-bottom: 1px solid var(--card-border);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    letter-spacing: -0.5px;
}

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

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a:not(.btn-primary-small) {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.nav-links a:not(.btn-primary-small):hover {
    color: white;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px 0;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    filter: blur(80px);
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 24px;
    color: #e0e6ed;
}

.subtitle {
    font-size: 1.25rem;
    margin-bottom: 32px;
    max-width: 480px;
}

.promises-list {
    list-style: none;
    margin-bottom: 40px;
}

.promises-list li {
    font-size: 1.05rem;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: #e2e8f0;
}

.promises-list .icon {
    font-size: 1.2rem;
}

.cta-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
}

.cta-note {
    font-size: 0.85rem;
    opacity: 0.7;
}

/* Phone Mockup */
.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: #000;
    border-radius: 40px;
    border: 8px solid #2a2b36;
    box-shadow: 0 24px 80px rgba(0,0,0,0.5), 0 0 40px var(--primary-glow);
    position: relative;
    overflow: hidden;
    z-index: 2;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #15161d;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.chat-bubble {
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 0.9rem;
    margin-bottom: 12px;
    max-width: 80%;
    line-height: 1.4;
}

.received {
    background: #2a2b36;
    color: white;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.sent {
    background: var(--primary);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.typing {
    display: flex;
    gap: 4px;
    padding: 16px;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: rgba(255,255,255,0.7);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

.keyboard-preview {
    margin-top: 20px;
    height: 200px;
    background: #1f2029;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--card-border);
}

.mic-button {
    background: linear-gradient(135deg, var(--accent), var(--primary));
    padding: 12px 24px;
    border-radius: 30px;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 8px 20px rgba(255, 0, 110, 0.4);
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 0, 110, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(255, 0, 110, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 0, 110, 0); }
}

/* Steps Section */
.how-it-works {
    padding: 100px 0;
    position: relative;
    background: linear-gradient(to bottom, transparent, rgba(123, 44, 191, 0.05), transparent);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.step-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 40px 32px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s, background 0.3s;
}

.step-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(123, 44, 191, 0.3);
}

.step-number {
    position: absolute;
    top: -20px;
    right: -10px;
    font-size: 8rem;
    font-weight: 900;
    color: rgba(255,255,255,0.03);
    line-height: 1;
}

/* Compare Section */
.compare-section {
    padding: 100px 0;
}

.compare-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-top: 48px;
}

.compare-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 40px;
    flex: 1;
    position: relative;
}

.compare-card.bad {
    border-top: 4px solid #ef233c;
}

.compare-card.good {
    border-top: 4px solid #06d6a0;
    background: linear-gradient(180deg, rgba(6, 214, 160, 0.05) 0%, transparent 100%);
}

.badge-tag {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: white;
}

.tag-red { background: #ef233c; }
.tag-green { background: #06d6a0; color: #000; }

.text-sample {
    font-size: 1.2rem;
    color: #fff;
    line-height: 1.6;
    margin-bottom: 24px;
    min-height: 120px;
    font-style: italic;
}

.good .text-sample {
    font-style: normal;
    font-size: 1.3rem;
}

.compare-arrow {
    font-size: 2rem;
    color: var(--text-muted);
}

.status-indicator {
    font-size: 0.95rem;
    font-weight: 500;
}

/* Use Cases */
.use-cases {
    padding: 100px 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.case-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: transform 0.3s;
}

.case-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255,255,255,0.15);
}

.case-icon {
    font-size: 2.5rem;
}

/* Bottom CTA */
.bottom-cta {
    padding: 120px 0;
    background: radial-gradient(circle at center, rgba(123, 44, 191, 0.1) 0%, transparent 70%);
}

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

.bottom-cta p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 40px auto;
}

.privacy-note {
    margin-top: 32px;
    font-size: 0.85rem !important;
    color: var(--text-muted);
}
.privacy-note a {
    color: var(--primary);
    text-decoration: underline;
}

/* Footer */
footer {
    padding: 40px 0;
    border-top: 1px solid var(--card-border);
    background: #0a0a0e;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: white;
}

.copyright {
    font-size: 0.85rem;
    width: 100%;
    text-align: center;
    margin-top: 24px;
}

/* Responsive */
@media (max-width: 992px) {
    h1 { font-size: 2.8rem; }
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-text {
        order: 1;
    }
    .hero-image {
        order: 2;
    }
    .cta-group {
        align-items: center;
    }
    .promises-list li {
        justify-content: center;
    }
    .compare-container {
        flex-direction: column;
    }
    .compare-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* simple mobile view */
    }
    .steps-grid {
        grid-template-columns: 1fr;
    }
    .cases-grid {
        grid-template-columns: 1fr;
    }
    h1 { font-size: 2.2rem; }
    h2 { font-size: 2rem; }
}