/* ===========================================
   PERSONAL AI - Interface Style Design
   Dark theme with grid, Solari Board effect
   =========================================== */

/* CSS Variables */
:root {
    --bg-primary: #000000;
    --bg-secondary: #050a14;
    --bg-card: #0a1520;
    --bg-card-hover: #101d2d;

    --accent-primary: #00a8ff;
    --accent-secondary: #00d4ff;
    --accent-glow: rgba(0, 168, 255, 0.4);

    --text-primary: #ffffff;
    --text-secondary: #888888;
    --text-muted: #555555;

    --border-color: #222222;
    --border-light: #333333;

    --font-primary: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Space Mono', 'Courier New', monospace;

    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

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

/* Grid Background */
.grid-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    background-position: -1px -1px;
}

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

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
}

/* ===========================================
   NAVIGATION
   =========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: clamp(14px, 1.8vw, 20px) clamp(16px, 3.6vw, 40px);
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0;
    color: var(--text-primary);
    text-decoration: none;
    line-height: 1;
}

.logo-image {
    width: clamp(64px, 7vw, 104px);
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 16px rgba(0, 212, 255, 0.25));
}

.logo-bracket {
    color: var(--text-muted);
}

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

.nav-status {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: flex;
    gap: 8px;
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
}

.status-divider {
    opacity: 0.3;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color var(--transition-fast);
}

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

.nav-cta {
    color: var(--accent-primary) !important;
    border: 1px solid var(--accent-primary);
    padding: 10px 20px !important;
    transition: all var(--transition-fast) !important;
}

.nav-cta:hover {
    background: var(--accent-primary) !important;
    color: var(--bg-primary) !important;
}

.lang-switch {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted) !important;
    border: 1px solid var(--border-color);
    padding: 6px 12px !important;
    border-radius: 2px;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.lang-switch:hover {
    color: var(--accent-primary) !important;
    border-color: var(--accent-primary);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 1px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

@media (max-width: 900px) {
    .nav-status {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: clamp(86px, 11vw, 102px);
        left: 0;
        width: 100%;
        flex-direction: column;
        background: var(--bg-primary);
        border-bottom: 1px solid var(--border-color);
        padding: 30px;
        gap: 25px;
        transform: translateY(-200%);
        opacity: 0;
        transition: all var(--transition-medium);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Dot Navigation */
.dot-nav {
    position: fixed;
    left: 40px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-light);
    transition: all var(--transition-fast);
}

.dot:hover,
.dot.active {
    background: var(--accent-primary);
    box-shadow: 0 0 12px var(--accent-glow);
}

@media (max-width: 1100px) {
    .dot-nav {
        display: none;
    }
}

/* ===========================================
   HERO SECTION
   =========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 140px 40px 80px 0;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 900px;
    margin-left: 0;
    padding-right: 40px;
}

@media (min-width: 1101px) {
    .hero-content {
        margin-left: 140px;
    }
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 40px;
}

.label-icon {
    color: var(--accent-primary);
    font-size: 0.65rem;
}

/* Solari Board Effect */
.hero-title {
    margin-bottom: 30px;
}

.hero-brand-lockup {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 34px;
}

.hero-logo {
    width: clamp(170px, 20vw, 250px);
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 36px rgba(0, 212, 255, 0.2));
}

.brand-title {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.14em;
    margin-bottom: 0;
}

.brand-title-main,
.brand-title-ai {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 5.6vw, 4.1rem);
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.08;
    text-transform: none;
}

.brand-title-ai {
    font-size: clamp(1.2rem, 3.2vw, 2.2rem);
    font-weight: 500;
    color: var(--accent-secondary);
    text-shadow: 0 0 22px rgba(0, 212, 255, 0.35);
}

.solari-line {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.solari-char {
    font-family: var(--font-primary);
    font-size: clamp(4rem, 12vw, 9rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    position: relative;
    animation: solariFlip 2s ease-out forwards;
    animation-delay: calc(var(--char-index, 0) * 0.08s);
    opacity: 0;
    transform: translateY(20px);
}

.solari-char.accent {
    color: var(--accent-primary);
    text-shadow: 0 0 60px var(--accent-glow);
}

@keyframes solariFlip {
    0% {
        opacity: 0;
        transform: translateY(20px) rotateX(90deg);
    }

    60% {
        opacity: 1;
        transform: translateY(0) rotateX(-10deg);
    }

    100% {
        opacity: 1;
        transform: translateY(0) rotateX(0);
    }
}

/* Assign animation delays to each character */
.solari-line:first-child .solari-char:nth-child(1) {
    --char-index: 0;
}

.solari-line:first-child .solari-char:nth-child(2) {
    --char-index: 1;
}

.solari-line:first-child .solari-char:nth-child(3) {
    --char-index: 2;
}

.solari-line:first-child .solari-char:nth-child(4) {
    --char-index: 3;
}

.solari-line:first-child .solari-char:nth-child(5) {
    --char-index: 4;
}

.solari-line:first-child .solari-char:nth-child(6) {
    --char-index: 5;
}

.solari-line:first-child .solari-char:nth-child(7) {
    --char-index: 6;
}

.solari-line:first-child .solari-char:nth-child(8) {
    --char-index: 7;
}

.solari-line:last-child .solari-char:nth-child(1) {
    --char-index: 8;
}

.solari-line:last-child .solari-char:nth-child(2) {
    --char-index: 9;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.3;
}

.hero-description {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 600px;
    margin-bottom: 50px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-decoration: none;
    padding: 16px 32px;
    border: 1px solid var(--border-light);
    background: transparent;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.btn:hover {
    border-color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.btn-primary {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

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

.btn-arrow {
    font-size: 1rem;
    transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
    transform: translate(3px, -3px);
}

.btn-large {
    padding: 20px 40px;
    font-size: 0.85rem;
}

/* Hero Stats */
.hero-stats {
    position: absolute;
    bottom: 80px;
    right: 40px;
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 30px 40px;
    border: 1px solid var(--border-color);
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
}

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

.stat-number {
    display: block;
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.stat-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-light);
}

@media (max-width: 900px) {
    .hero-brand-lockup {
        margin-bottom: 26px;
    }

    .hero-logo {
        width: clamp(130px, 42vw, 200px);
    }

    .brand-title-main,
    .brand-title-ai {
        letter-spacing: -0.01em;
    }

    .brand-title-main {
        font-size: clamp(1.72rem, 8.6vw, 2.65rem);
    }

    .brand-title-ai {
        font-size: clamp(1.02rem, 5.2vw, 1.55rem);
    }

    .hero {
        padding: 120px 20px 60px;
    }

    .hero-stats {
        position: static;
        margin-top: 60px;
        justify-content: center;
        flex-wrap: wrap;
        gap: 30px;
    }

    .stat-divider {
        display: none;
    }
}

/* ===========================================
   SECTION STYLES
   =========================================== */
section {
    padding: 120px 0;
    position: relative;
    z-index: 1;
}

.section-header {
    margin-bottom: 60px;
}

.section-label {
    display: flex;
    gap: 20px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 16px;
}

.label-number {
    color: var(--accent-primary);
}

.section-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

/* ===========================================
   SERVICES SECTION
   =========================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    background: var(--border-color);
    border: 1px solid var(--border-color);
}

.service-card {
    background: var(--bg-primary);
    padding: 50px;
    transition: background var(--transition-medium);
}

.service-card:hover {
    background: var(--bg-card);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.card-number {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.card-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
}

.card-tag.accent {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.card-features {
    list-style: none;
}

.card-features li {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.service-card.featured {
    border: 1px solid var(--accent-primary);
    background: rgba(0, 168, 255, 0.03);
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card {
        padding: 30px;
    }
}

/* ===========================================
   PROCESS SECTION
   =========================================== */
.process-timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-left: 1px solid var(--border-color);
    margin-left: 20px;
}

.process-step {
    display: flex;
    align-items: flex-start;
    padding: 40px 50px;
    position: relative;
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-medium);
}

.process-step:hover {
    background: var(--bg-card);
}

.step-indicator {
    position: relative;
    margin-right: 40px;
}

.step-number {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.process-step:hover .step-number {
    color: var(--accent-primary);
}

.step-content h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.step-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    max-width: 500px;
}

.process-cta {
    margin-top: 60px;
    text-align: center;
}

/* ===========================================
   INDUSTRIES SECTION
   =========================================== */
.industries {
    background: var(--bg-secondary);
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--border-color);
    border: 1px solid var(--border-color);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.industries-grid.visible {
    opacity: 1;
    transform: translateY(0);
}

.industry-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 30px 40px;
    background: var(--bg-secondary);
    opacity: 0;
    transform: translateY(15px);
    transition: all var(--transition-fast), opacity 0.6s ease, transform 0.6s ease;
}

.industries-grid.visible .industry-item {
    opacity: 1;
    transform: translateY(0);
}

.industries-grid.visible .industry-item:nth-child(1) { transition-delay: 0.1s; }
.industries-grid.visible .industry-item:nth-child(2) { transition-delay: 0.15s; }
.industries-grid.visible .industry-item:nth-child(3) { transition-delay: 0.2s; }
.industries-grid.visible .industry-item:nth-child(4) { transition-delay: 0.25s; }
.industries-grid.visible .industry-item:nth-child(5) { transition-delay: 0.3s; }
.industries-grid.visible .industry-item:nth-child(6) { transition-delay: 0.35s; }

.industry-item:hover {
    background: var(--bg-card);
}

.industry-icon {
    color: var(--accent-primary);
    font-size: 0.8rem;
}

.industry-name {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.industry-item:hover .industry-name {
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .industries-grid {
        grid-template-columns: 1fr;
    }
}

/* ===========================================
   INTEGRATIONS MARQUEE
   =========================================== */
.integrations {
    padding: 60px 0;
    overflow: hidden;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.integrations-marquee {
    overflow: hidden;
}

.marquee-track {
    display: flex;
    gap: 40px;
    animation: marquee 30s linear infinite;
    white-space: nowrap;
}

.integration-tag {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
}

.integration-divider {
    color: var(--accent-primary);
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

/* ===========================================
   FAQ SECTION
   =========================================== */
.faq-list {
    border: 1px solid var(--border-color);
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 30px 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-card);
}

.faq-number {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    min-width: 30px;
}

.faq-text {
    flex: 1;
    font-family: var(--font-primary);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
}

.faq-icon {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--accent-primary);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 40px 30px 90px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

@media (max-width: 768px) {
    .faq-question {
        padding: 20px;
    }

    .faq-answer p {
        padding: 0 20px 20px 50px;
    }
}

/* ===========================================
   CTA SECTION
   =========================================== */
.cta-section {
    padding: 150px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 30px;
}

.cta-content h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

/* ===========================================
   FOOTER
   =========================================== */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 16px;
    max-width: 300px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 20px;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 12px;
}

.footer-column a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.legal-info {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-bottom a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

@media (max-width: 900px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .footer-links {
        grid-template-columns: 1fr;
    }

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

/* ===========================================
   UTILITY CLASSES
   =========================================== */
.text-accent {
    color: var(--accent-primary);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}