/* JetBrains Mono — used for mono-caps, status pills, and code-style labels */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    /* Ultra-Holistic Onyx & Alabaster Palette */
    --bg-page: #FDFCFB;
    --bg-surface: #FFFFFF;
    --bg-alt: #F4F2EE;

    --text-primary: #0A0A0A;
    --text-secondary: #5A5A5A;
    --text-tertiary: #8C8C8C;

    --border-subtle: rgba(0, 0, 0, 0.06);
    --border-defined: rgba(0, 0, 0, 0.12);
    --radius-sm: 12px;
    --radius-md: 24px;
    --radius-lg: 32px;
    --radius-pill: 100px;

    --shadow-float: 0 20px 40px -10px rgba(0, 0, 0, 0.05);
    --shadow-sharp: 0 4px 12px rgba(0, 0, 0, 0.03);

    --font-sans: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --section-pad: 160px;
}

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

/* Remove 300ms tap delay and suppress blue highlight on iOS/Android */
a,
button,
[role="button"] {
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

html {
    background-color: var(--text-primary);
}

body {
    background-color: #FFFFFF;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* Prevent iOS Safari from auto-scaling text in landscape */
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

h1,
h2,
.serif-text {
    font-family: var(--font-sans);
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

h1 {
    font-size: clamp(3.5rem, 7vw, 6rem);
}

h2 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h3 {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: -0.03em;
}

p {
    color: var(--text-secondary);
    font-weight: 300;
}

.text-large {
    font-size: 1.25rem;
    line-height: 1.7;
}

.mono-caps {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-tertiary);
    font-weight: 400;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.section {
    padding: var(--section-pad) 0;
    position: relative;
}

.grid-bento {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
}

.nav-wrapper {
    position: fixed;
    top: 24px;
    left: 0;
    width: 100%;
    z-index: 100;
    display: flex;
    justify-content: center;
    padding: 0 20px;
    pointer-events: none;
}

.nav-pill {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-pill);
    padding: 8px 8px 8px 32px;
    display: flex;
    align-items: center;
    gap: 48px;
    box-shadow: var(--shadow-sharp);
    pointer-events: auto;
    transition: all 0.4s ease;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.25rem;
    font-weight: 600;
    font-style: italic;
    color: var(--text-primary);
    text-decoration: none;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    transition: color 0.3s;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0 32px;
    height: 48px;
    border-radius: var(--radius-pill);
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
}

.btn-primary {
    background: var(--text-primary);
    color: #fff;
}

.btn-primary:hover {
    background: #000;
    transform: scale(1.02);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn-outline {
    border: 1px solid var(--border-defined);
    color: var(--text-primary);
    background: transparent;
}

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

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 140px;
    padding-bottom: 100px;
    background-color: #DDE3EA;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.58);
    z-index: 1;
}

.hero::after {
    content: none !important;
    background-image: none !important;
}

.hero-bg-media {
    position: absolute;
    inset: 0;
    background-color: #DDE3EA;
    z-index: 0;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: 60px;
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-text {
    text-align: left;
}

.hero-title-art {
    margin-bottom: 24px;
    font-size: clamp(2.9rem, 6vw, 5rem);
    font-weight: 680;
    line-height: 0.94;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    text-wrap: balance;
    /* Fallback for browsers that don't support text-wrap: balance */
    overflow-wrap: break-word;
    word-break: normal;
}

.hero-kicker {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.hero-title-em {
    font-family: inherit;
    font-style: normal;
    font-weight: inherit;
    letter-spacing: inherit;
}

.hero-subtitle {
    font-family: var(--font-sans);
    font-weight: 300;
    font-style: normal;
    font-size: clamp(1rem, 1.8vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.3;
}

.bento-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 48px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sharp);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.6s ease;
    position: relative;
    overflow: hidden;
}

.bento-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-float);
    border-color: var(--border-defined);
}

.bento-card.dark {
    background: var(--text-primary);
    color: #fff;
}

.bento-card.dark p {
    color: rgba(255, 255, 255, 0.7);
}

.bento-card.dark .mono-caps {
    color: rgba(255, 255, 255, 0.5);
}

@keyframes fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Phone Mockup --- */
.hero-visual {
    display: flex;
    justify-content: flex-end;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: #050505;
    border: 10px solid #050505;
    border-radius: 46px;
    position: relative;
    box-shadow: 0 50px 100px -20px rgba(0, 0, 0, 0.4), 0 30px 60px -30px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.phone-status-bar {
    height: 44px;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding: 0 28px 8px;
    color: #0A0A0A;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 500;
    z-index: 20;
}

.phone-status-icons {
    display: flex;
    gap: 8px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #FFFFFF;
    border-radius: 42px;
    overflow: hidden;
    position: relative;
}

.vltc-logo-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.vltc-logo {
    font-size: 42px;
    font-family: var(--font-sans);
    font-weight: 900;
    color: #0A0A0A;
    letter-spacing: -0.035em;
    -webkit-text-stroke: 0.015em currentColor;
    transform: scaleY(1.08);
    animation: fade-in 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.phone-home-indicator {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 2px;
    z-index: 20;
}

.col-span-1 {
    grid-column: span 1;
}

.col-span-2 {
    grid-column: span 2;
}

.col-span-3 {
    grid-column: span 3;
}

.col-span-4 {
    grid-column: span 4;
}

.col-span-5 {
    grid-column: span 5;
}

.col-span-6 {
    grid-column: span 6;
}

.col-span-7 {
    grid-column: span 7;
}

.col-span-8 {
    grid-column: span 8;
}

.col-span-12 {
    grid-column: span 12;
}

.ai-voice-mockup {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    min-height: 460px;
    width: 100%;
}

.accent-line {
    width: 48px;
    height: 2px;
    background-color: var(--text-primary);
    margin-bottom: 24px;
}

.orb-container {
    width: 100%;
    position: relative;
    margin-top: 40px;
    margin-bottom: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.orb {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background-color: #333333;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: breathe-active 4s infinite ease-in-out;
    position: relative;
}

.orb::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 1px solid rgba(0, 0, 0, 0.15);
    animation: ripple-active 2.5s infinite ease-out;
    pointer-events: none;
}

.orb-text {
    color: #ffffff;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

@keyframes breathe-active {

    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 0 0px rgba(0, 0, 0, 0);
    }

    50% {
        transform: scale(1.03);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    }
}

@keyframes ripple-active {
    0% {
        transform: scale(1);
        opacity: 0.8;
    }

    100% {
        transform: scale(1.6);
        opacity: 0;
    }
}

.ai-transcription {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 2.25rem;
    letter-spacing: -0.02em;
    text-align: left;
    color: var(--text-primary);
    max-width: 95%;
    line-height: 1.2;
    transition: opacity 0.5s ease;
    min-height: 4.5em;
}

/* --- Monitoring Tiles --- */
.pulse-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.pulse-tile {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: all 0.3s ease;
}

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

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(16, 185, 129, 0.08);
    color: #059669;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
}

.status-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #10B981;
    animation: blink 2s infinite;
    transition: all 0.3s ease;
}

/* Warning State */
.pulse-tile.warning {
    border-color: rgba(239, 68, 68, 0.2);
}

.pulse-tile.warning .status-pill {
    background: rgba(239, 68, 68, 0.08);
    color: #EF4444;
}

.pulse-tile.warning .status-dot {
    background: #EF4444;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }
}

.pulse-label {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.pulse-meta {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-tertiary);
}

.cta-section {
    background-color: var(--text-primary);
    color: #fff;
    text-align: center;
    padding: 200px 0;
    border-radius: 40px 40px 0 0;
    margin-top: 80px;
}

.cta-section h2 {
    color: #fff;
    margin-bottom: 48px;
}

.footer {
    background-color: var(--text-primary);
    color: rgba(255, 255, 255, 0.4);
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.2s;
}

.delay-3 {
    transition-delay: 0.3s;
}


/* Early Access Fade Transition */
.fade-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #e3e3e3;
    /* matches early-access bg */
    z-index: 99999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease-in-out;
}

.fade-transition-overlay.is-visible {
    opacity: 1;
    pointer-events: all;
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   - Tablet landscape : max-width 1024px
   - Tablet portrait  : max-width 768px
   - Mobile phone     : max-width 480px
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── Tablet Landscape (≤ 1024px) ──────────────────────────────────────── */
@media (max-width: 1024px) {

    .col-span-2,
    .col-span-4,
    .col-span-5,
    .col-span-6,
    .col-span-7,
    .col-span-8 {
        grid-column: span 12;
    }

    .col-span-1 {
        display: none;
    }

    .nav-links {
        display: none;
    }

    .nav-pill {
        padding-right: 32px;
    }

    h1 {
        font-size: 3.5rem;
    }

    h2 {
        font-size: 2.5rem;
    }

    .hero {
        min-height: 100vh;
        padding-top: 120px;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 0 20px;
    }

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

    .hero-visual {
        justify-content: center;
    }

    .pulse-grid {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 100px 0;
    }

    .cta-section {
        padding: 120px 0;
    }

    .bento-card {
        padding: 36px;
    }
}

/* ─── Tablet Portrait (≤ 768px) ────────────────────────────────────────── */
@media (max-width: 768px) {

    .container {
        padding: 0 24px;
    }

    .nav-pill {
        gap: 24px;
    }


    .section {
        padding: 80px 0;
    }

    h1 {
        font-size: 2.8rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .hero {
        padding-top: 100px;
        padding-bottom: 60px;
    }

    .hero-title-art {
        font-size: clamp(2.2rem, 8vw, 3.2rem);
    }

    .phone-mockup {
        width: 220px;
        height: 440px;
    }

    .bento-card {
        padding: 28px;
    }

    .ai-voice-mockup {
        min-height: 320px;
    }

    .ai-transcription {
        font-size: 1.6rem;
    }

    .orb {
        width: 140px;
        height: 140px;
    }

    .cta-section {
        padding: 100px 0;
        border-radius: 24px 24px 0 0;
    }

    .footer-flex {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }

    .footer-tagline {
        display: none;
    }
}

/* ─── Mobile Phone (≤ 480px) ───────────────────────────────────────────── */
@media (max-width: 480px) {

    .container {
        padding: 0 16px;
    }

    .section {
        padding: 60px 0;
    }

    h1 {
        font-size: 2.2rem;
    }

    h2 {
        font-size: 1.7rem;
    }

    h3 {
        font-size: 1.1rem;
    }

    .hero {
        padding-top: 90px;
        padding-bottom: 40px;
    }

    .hero-title-art {
        font-size: clamp(1.8rem, 9vw, 2.5rem);
        line-height: 1.05;
    }

    .hero-kicker {
        font-size: 0.55rem;
    }

    .phone-mockup {
        width: 180px;
        height: 360px;
        border-width: 8px;
        border-radius: 36px;
    }

    .phone-screen {
        border-radius: 32px;
    }

    .vltc-logo {
        font-size: 32px;
    }

    .bento-card {
        padding: 20px;
    }

    .ai-voice-mockup {
        min-height: 260px;
    }

    .ai-transcription {
        font-size: 1.3rem;
        min-height: 3.5em;
    }

    .orb {
        width: 110px;
        height: 110px;
    }

    .orb-text {
        font-size: 0.5rem;
    }

    .btn {
        height: 42px;
        padding: 0 24px;
        font-size: 0.65rem;
    }

    .nav-pill {
        padding: 6px 24px 6px 24px;
        gap: 16px;
    }

    .logo {
        font-size: 1.1rem;
    }

    .cta-section {
        padding: 80px 0;
        border-radius: 20px 20px 0 0;
        margin-top: 40px;
    }

    .cta-section h2 {
        margin-bottom: 32px;
    }

    .text-large {
        font-size: 1.05rem;
    }

    .pulse-tile {
        padding: 18px;
    }

    .accent-line {
        width: 32px;
    }

    .grid-bento {
        gap: 16px;
    }
}