/* ══════════════════════════════════════════════════════════════════════════
   SENTRY POINT - LANDING PAGE STYLES
   Palantir-inspired: White, Black, Deep Blue
   ══════════════════════════════════════════════════════════════════════════ */

/* ── Reset & Variables ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Palantir-inspired palette */
    --white: #ffffff;
    --off-white: #f8f9fa;
    --light-gray: #e5e7eb;
    --medium-gray: #6b7280;
    --dark-gray: #374151;
    --black: #111111;
    
    /* Blues */
    --primary-blue: #1e3a5f;
    --accent-blue: #2563eb;
    --highlight-blue: #3b82f6;
    --subtle-blue: #dbeafe;
    --deep-blue: #0f172a;
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    
    /* Spacing */
    --nav-height: 72px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--white);
    color: var(--black);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

body.modal-open {
    overflow: hidden;
}

/* ══════════════════════════════════════════════════════════════════════════
   DISCLAIMER MODAL
   ══════════════════════════════════════════════════════════════════════════ */
#disclaimer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(8px);
}

#disclaimer-box {
    background: var(--white);
    border: 1px solid var(--light-gray);
    border-radius: 12px;
    max-width: 640px;
    width: 90%;
    padding: 40px 44px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

#disclaimer-box h2 {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--primary-blue);
    margin-bottom: 8px;
    font-weight: 600;
}

#disclaimer-box h3 {
    font-size: 1.5rem;
    color: var(--black);
    font-weight: 700;
    margin-bottom: 20px;
}

#disclaimer-box p {
    font-size: 0.85rem;
    line-height: 1.8;
    color: var(--medium-gray);
    margin-bottom: 28px;
}

#disclaimer-box .modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

#disclaimer-box .modal-footer small {
    font-size: 0.75rem;
    color: var(--medium-gray);
    max-width: 340px;
    line-height: 1.6;
}

#acknowledge-btn {
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 6px;
    padding: 14px 36px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

#acknowledge-btn:hover {
    background: var(--accent-blue);
    transform: translateY(-1px);
}
/* ══════════════════════════════════════════════════════════════════════════
   NAVIGATION
   ══════════════════════════════════════════════════════════════════════════ */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 48px;
    z-index: 1000;
}

/* Left side: Brand + Nav Links grouped together */
.nav-left {
    display: flex;
    align-items: center;
    gap: 48px;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--black);
    letter-spacing: -0.02em;
    text-decoration: none; 
}

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

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--dark-gray);
    text-decoration: none;
    transition: color 0.2s;
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link i {
    font-size: 0.65rem;
    transition: transform 0.2s;
}

.nav-link:hover {
    color: var(--black);
}

.nav-link:hover i {
    transform: rotate(180deg);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--white);
    border: 1px solid var(--light-gray);
    border-radius: 8px;
    padding: 8px 0;
    min-width: 160px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    font-size: 0.9rem;
    color: var(--dark-gray);
    text-decoration: none;
    transition: all 0.15s;
}

.dropdown-menu a:hover {
    background: var(--off-white);
    color: var(--black);
}

/* Right side buttons */
.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-btn {
    padding: 10px 24px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}

.nav-btn.secondary {
    color: var(--primary-blue);
    background: transparent;
}

.nav-btn.secondary:hover {
    background: var(--subtle-blue);
}

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

.nav-btn.primary:hover {
    background: var(--accent-blue);
}
/* ══════════════════════════════════════════════════════════════════════════
   HERO SECTION
   ══════════════════════════════════════════════════════════════════════════ */
.hero {
    padding: 160px 48px 80px;
    text-align: center;
    background: transparent;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-label {
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--medium-gray);
    margin-bottom: 24px;
    font-weight: 500;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    color: var(--black);
    letter-spacing: -0.03em;
}

.hero-title .highlight {
    color: var(--accent-blue);
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--medium-gray);
    max-width: 560px;
    margin: 0 auto 48px;
    line-height: 1.7;
}

/* ══════════════════════════════════════════════════════════════════════════
   ANIMATED CHAT BOX
   ══════════════════════════════════════════════════════════════════════════ */
.chat-container {
    width: 100%;
    max-width: 760px;
    margin: 0 auto 32px;
}

.chat-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--light-gray);
    border-radius: 16px;
    padding: 24px 28px;
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 2px 4px -1px rgba(0, 0, 0, 0.06),
        0 20px 50px -12px rgba(0, 0, 0, 0.15);
    text-align: left;
    position: relative;
    z-index: 2;
}

.chat-question {
    font-size: 1.05rem;
    color: var(--black);
    min-height: 28px;
    display: flex;
    align-items: center;
    padding-bottom: 16px;
}

.chat-question .cursor {
    display: inline-block;
    width: 2px;
    height: 22px;
    background: var(--accent-blue);
    margin-left: 2px;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.chat-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--light-gray);
}

.chat-controls-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.chat-pill {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border: 1px solid var(--light-gray);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--dark-gray);
    background: var(--off-white);
}

.chat-pill i {
    font-size: 0.85rem;
    color: var(--medium-gray);
}

.chat-controls-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.thinking-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border: 1px solid var(--accent-blue);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--accent-blue);
    background: var(--subtle-blue);
    transition: all 0.3s ease;
}

.thinking-badge i {
    animation: spin 1.5s linear infinite;
}

.thinking-badge.complete {
    background: #d1fae5;
    border-color: #059669;
    color: #059669;
}

.thinking-badge.complete i {
    animation: none;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.chat-mic {
    color: var(--medium-gray);
    font-size: 1rem;
    cursor: pointer;
    transition: color 0.2s;
}

.chat-mic:hover {
    color: var(--accent-blue);
}

/* Answer Container */
.answer-container {
    margin-top: 0;
    padding: 0 24px;
    background: var(--off-white);
    border-radius: 10px;
    border-left: 3px solid var(--accent-blue);
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.4s ease;
    max-height: 0;
    overflow: hidden;
}

.answer-container.visible {
    opacity: 1;
    transform: translateY(0);
    max-height: 300px;
    padding: 20px 24px;
    margin-top: 20px;
}

.answer-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    font-size: 0.75rem;
    color: var(--accent-blue);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.answer-header i {
    font-size: 0.9rem;
}

.answer-text {
    font-size: 0.92rem;
    color: var(--dark-gray);
    line-height: 1.7;
}

/* ══════════════════════════════════════════════════════════════════════════
   CTA BUTTONS
   ══════════════════════════════════════════════════════════════════════════ */
.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 40px;
}

.cta-btn {
    padding: 16px 40px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

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

.cta-btn.primary:hover {
    background: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px -6px rgba(37, 99, 235, 0.35);
}

.cta-btn.secondary {
    color: var(--primary-blue);
    background: transparent;
}

.cta-btn.secondary:hover {
    color: var(--accent-blue);
}

.cta-btn.secondary i {
    transition: transform 0.2s;
}

.cta-btn.secondary:hover i {
    transform: translateX(4px);
}

/* ══════════════════════════════════════════════════════════════════════════
   FEATURE CARDS SECTION
   ══════════════════════════════════════════════════════════════════════════ */
.features-section {
    padding: 80px 48px 100px;
    background: var(--white);
    position: relative;
    z-index: 1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    max-width: 1100px;
    margin: 0 auto;
}

.feature-card {
    padding: 36px 28px;
    background: var(--white);
    border: 1px solid var(--light-gray);
    border-radius: 12px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.feature-card.active {
    border-color: var(--accent-blue);
    box-shadow: 0 12px 40px -8px rgba(37, 99, 235, 0.2);
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.95);
}

.feature-card.active::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
    transition: all 0.4s ease;
}

/* Icon colors per card */
.feature-card:nth-child(1) .feature-icon {
    background: #fef3c7;
    color: #d97706;
}

.feature-card:nth-child(2) .feature-icon {
    background: var(--subtle-blue);
    color: var(--accent-blue);
}

.feature-card:nth-child(3) .feature-icon {
    background: #d1fae5;
    color: #059669;
}

.feature-card.active .feature-icon {
    transform: scale(1.1);
}

.feature-label {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent-blue);
    margin-bottom: 10px;
    font-weight: 600;
}

.feature-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 12px;
}

.feature-description {
    font-size: 0.9rem;
    color: var(--medium-gray);
    line-height: 1.7;
}

/* ══════════════════════════════════════════════════════════════════════════
   VALUE PROPOSITIONS SECTION
   ══════════════════════════════════════════════════════════════════════════ */
.values-section {
    padding: 100px 48px;
    background: var(--off-white);
    position: relative;
    z-index: 1;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px;
    max-width: 1100px;
    margin: 0 auto;
}

.value-item {
    text-align: left;
}

.value-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
    color: var(--accent-blue);
}

.value-icon svg {
    width: 100%;
    height: 100%;
}

.value-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-blue);
    margin-bottom: 12px;
}

.value-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 16px;
    line-height: 1.3;
}

.value-description {
    font-size: 0.95rem;
    color: var(--medium-gray);
    line-height: 1.75;
}

/* ══════════════════════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════════════════════ */
.footer {
    margin-top: auto;
    padding: 36px 48px;
    background: var(--black);
    color: var(--white);
    position: relative;
    z-index: 1;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 40px;
}

.footer-brand {
    font-size: 1rem;
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--medium-gray);
    text-decoration: none;
    transition: color 0.2s;
}

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

.footer-right {
    text-align: right;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--medium-gray);
}

/* ══════════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .features-grid,
    .values-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .values-grid {
        gap: 48px;
    }
    
    .value-item {
        text-align: center;
    }
    
    .value-icon {
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 768px) {
    .top-nav {
        padding: 0 24px;
    }
    
    .nav-center {
        display: none;
    }
    
    .hero {
        padding: 120px 24px 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .chat-box {
        padding: 20px;
    }
    
    .chat-controls-left {
        flex-wrap: wrap;
    }
    
    .features-section,
    .values-section {
        padding: 60px 24px;
    }
    
    .footer {
        padding: 30px 24px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-left {
        flex-direction: column;
        gap: 16px;
    }
}

/* ══════════════════════════════════════════════════════════════════════════
   ACCESSIBILITY: Reduce motion
   ══════════════════════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
    .animated-bg::before,
    .animated-bg::after {
        animation: none;
    }
    
    .thinking-badge i {
        animation: none;
    }
}
/* ══════════════════════════════════════════════════════════════════════════
   FLUID DYNAMICS BACKGROUND
   ══════════════════════════════════════════════════════════════════════════ */
#fluid-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: auto;
    background: #f4f9fd;
}

body.modal-open #fluid-canvas {
    pointer-events: none;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    #fluid-canvas {
        display: none;
    }
    
    body {
        background: linear-gradient(135deg, #e8f4fc 0%, #f4f9fd 100%);
    }
}