/* ============================================================
   WHITE GHOST CYBER SYSTEMS — Style System
   Dark / Light mode via [data-theme] on <html>
   ============================================================ */

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

/* --- THEME VARIABLES --- */
:root,
[data-theme="dark"] {
    --bg:          #000000;
    --bg-card:     #0a0a0a;
    --bg-hover:    #141414;
    --surface:     #1a1a1a;
    --border:      #262626;
    --border-lt:   #333333;
    --text:        #a0a0a0;
    --text-dim:    #666666;
    --text-bright: #ffffff;
    --accent:      #ffffff;
    --accent-dim:  #cccccc;
    --accent-glow: rgba(255, 255, 255, 0.06);
    --accent2:     #999999;
    --danger:      #ff4c6e;
    --grid-color:  rgba(255,255,255,0.025);
    --logo-fill:   #ffffff;
    --logo-stroke: #000000;
    --shadow-card: 0 16px 48px rgba(0,0,0,0.5);
    --shadow-hero: 0 20px 80px rgba(0,0,0,0.6);
}

[data-theme="light"] {
    --bg:          #ffffff;
    --bg-card:     #f5f5f5;
    --bg-hover:    #eeeeee;
    --surface:     #e8e8e8;
    --border:      #d4d4d4;
    --border-lt:   #bbbbbb;
    --text:        #555555;
    --text-dim:    #888888;
    --text-bright: #000000;
    --accent:      #000000;
    --accent-dim:  #333333;
    --accent-glow: rgba(0, 0, 0, 0.05);
    --accent2:     #666666;
    --danger:      #e0334e;
    --grid-color:  rgba(0,0,0,0.025);
    --logo-fill:   #ffffff;
    --logo-stroke: #000000;
    --shadow-card: 0 8px 32px rgba(0,0,0,0.08);
    --shadow-hero: 0 12px 40px rgba(0,0,0,0.06);
}

/* --- BASE --- */
html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.65;
    transition: background 0.4s, color 0.4s;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* --- UTILITIES --- */
.text--accent { color: var(--accent); }

.section__inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section__tag {
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
    padding: 0.35rem 0.8rem;
    border: 1px solid var(--accent);
    border-radius: 2px;
    background: var(--accent-glow);
}

.section__title {
    font-family: 'Chakra Petch', sans-serif;
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--text-bright);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    transition: color 0.4s;
}

.section__desc {
    font-size: 1.05rem;
    color: var(--text-dim);
    max-width: 520px;
}

.section__header {
    margin-bottom: 3.5rem;
}

/* --- BUTTONS --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.85rem 2rem;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

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

.btn--primary:hover {
    filter: brightness(1.15);
    box-shadow: 0 0 30px var(--accent-glow);
    transform: translateY(-1px);
}

.btn--ghost {
    background: transparent;
    color: var(--text-bright);
    border: 1px solid var(--border-lt);
}

.btn--ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}

.btn--full { width: 100%; }

/* --- THEME TOGGLE --- */
.theme-toggle {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    color: var(--text-dim);
    flex-shrink: 0;
}

.theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}

.theme-toggle__icon {
    width: 18px;
    height: 18px;
}

/* Show/hide sun/moon icons based on theme */
[data-theme="dark"] .theme-toggle__icon--sun  { display: block; }
[data-theme="dark"] .theme-toggle__icon--moon { display: none; }
[data-theme="light"] .theme-toggle__icon--sun  { display: none; }
[data-theme="light"] .theme-toggle__icon--moon { display: block; }

/* --- NAVIGATION --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1rem 0;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    background: transparent;
}

.nav--scrolled {
    background: color-mix(in srgb, var(--bg) 92%, transparent);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 0.65rem 0;
}

.nav__inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.nav__logo-svg {
    width: 34px;
    height: 30px;
    fill: var(--logo-fill);
    stroke: var(--logo-stroke);
    stroke-width: 2;
    animation: ghostPulse 3s ease-in-out infinite;
    transition: fill 0.4s, stroke 0.4s;
}

.nav__logo-text {
    font-family: 'Chakra Petch', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.15em;
    color: var(--text-bright);
    transition: color 0.4s;
}

@keyframes ghostPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.nav__links {
    display: flex;
    gap: 2.5rem;
}

.nav__link {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-dim);
    position: relative;
    transition: color 0.3s;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav__link:hover { color: var(--accent); }
.nav__link:hover::after { width: 100%; }

.nav__right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav__toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-bright);
    transition: all 0.3s;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 99;
    background: color-mix(in srgb, var(--bg) 97%, transparent);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s;
}

.mobile-menu--open { opacity: 1; pointer-events: all; }

.mobile-menu__link {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-bright);
    letter-spacing: 0.08em;
    transition: color 0.3s;
}

.mobile-menu__link:hover { color: var(--accent); }

/* --- HERO --- */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 3rem;
    max-width: 1280px;
    margin: 0 auto;
    padding: 8rem 2rem 4rem;
    position: relative;
}

.hero__grid-bg {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: -1;
    transition: background-image 0.4s;
}

.hero__badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.25em;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.hero__title {
    font-family: 'Chakra Petch', sans-serif;
    font-weight: 700;
    line-height: 1.05;
    margin-bottom: 1.5rem;
}

.hero__title-line {
    display: block;
    font-size: clamp(2.5rem, 6vw, 4.2rem);
    color: var(--text-bright);
    letter-spacing: -0.02em;
    transition: color 0.4s;
}

.hero__title-line--accent {
    color: var(--accent);
}

[data-theme="dark"] .hero__title-line--accent {
    text-shadow: 0 0 40px rgba(255,255,255,0.08);
}

.hero__sub {
    font-size: 1.05rem;
    color: var(--text-dim);
    max-width: 480px;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Hero Logo Mark */
.hero__logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__logo-svg {
    width: 100%;
    max-width: 380px;
    height: auto;
    fill: var(--logo-fill);
    stroke: var(--logo-stroke);
    stroke-width: 1.5;
    opacity: 0.18;
    transition: opacity 0.4s, fill 0.4s, stroke 0.4s;
    animation: logoFloat 6s ease-in-out infinite;
}

[data-theme="dark"] .hero__logo-svg {
    opacity: 0.22;
}

[data-theme="light"] .hero__logo-svg {
    opacity: 0.12;
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* --- SERVICES --- */
.services {
    padding: 7rem 0;
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-lt), transparent);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-card:hover {
    border-color: var(--border-lt);
    background: var(--bg-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card), 0 0 24px var(--accent-glow);
}

.service-card:hover::before { transform: scaleX(1); }

.service-card__icon {
    width: 48px;
    height: 48px;
    color: var(--accent);
    margin-bottom: 1.25rem;
}

.service-card__title {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 0.75rem;
    transition: color 0.4s;
}

.service-card__desc {
    font-size: 0.88rem;
    color: var(--text-dim);
    line-height: 1.65;
    margin-bottom: 1.25rem;
}

.service-card__list li {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--text-dim);
    padding: 0.35rem 0;
    border-bottom: 1px solid var(--border);
    letter-spacing: 0.04em;
}

.service-card__list li:last-child { border-bottom: none; }
.service-card__list li::before { content: '→ '; color: var(--accent); }

/* --- ABOUT --- */
.about {
    padding: 7rem 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    transition: background 0.4s;
}

.about__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about__lead {
    font-size: 1.15rem;
    color: var(--text-bright);
    line-height: 1.7;
    margin-bottom: 1.25rem;
    margin-top: 1rem;
    transition: color 0.4s;
}

.about__body {
    font-size: 0.92rem;
    color: var(--text-dim);
    line-height: 1.75;
    margin-bottom: 1rem;
}

/* Hex Grid */
.about__hex-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.hex-cell {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.hex-cell::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-glow), transparent);
    opacity: 0;
    transition: opacity 0.4s;
}

.hex-cell--active {
    border-color: rgba(255,255,255,0.25);
    color: var(--accent);
    box-shadow: inset 0 0 20px var(--accent-glow);
}

.hex-cell--active::after { opacity: 1; }

.hex-cell:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: scale(1.05);
    box-shadow: 0 0 24px var(--accent-glow);
}

/* --- CAPABILITIES --- */
.capabilities { padding: 7rem 0; }

.capabilities__list {
    display: flex;
    flex-direction: column;
}

.cap-row {
    display: grid;
    grid-template-columns: 60px 1fr 2fr auto;
    gap: 2rem;
    align-items: center;
    padding: 1.75rem 0;
    border-bottom: 1px solid var(--border);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.cap-row:first-child { border-top: 1px solid var(--border); }

.cap-row:hover {
    background: var(--bg-card);
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    margin: 0 -1.5rem;
    border-radius: 4px;
}

.cap-row__num {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 0.85rem;
    font-weight: 300;
    color: var(--text-dim);
}

.cap-row__title {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-bright);
    transition: color 0.4s;
}

.cap-row__desc {
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.6;
}

.cap-row__tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6rem;
    letter-spacing: 0.15em;
    color: var(--accent);
    padding: 0.3rem 0.6rem;
    border: 1px solid var(--border-lt);
    border-radius: 2px;
    background: var(--accent-glow);
    white-space: nowrap;
}

/* --- CONTACT --- */
.contact {
    padding: 7rem 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    transition: background 0.4s;
}

.contact__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact__lead {
    font-size: 1rem;
    color: var(--text-dim);
    line-height: 1.7;
    margin-top: 1rem;
    margin-bottom: 2rem;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact__info-row {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.contact__info-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-dim);
}

.contact__info-value {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 0.95rem;
    color: var(--text-bright);
    transition: color 0.3s;
}

a.contact__info-value:hover { color: var(--accent); }

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.contact-form__label {
    display: block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 0.4rem;
}

.contact-form__input,
.contact-form__textarea {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.8rem 1rem;
    font-family: 'Outfit', sans-serif;
    font-size: 0.9rem;
    color: var(--text-bright);
    transition: all 0.3s;
    outline: none;
}

.contact-form__input:focus,
.contact-form__textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.contact-form__textarea {
    resize: vertical;
    min-height: 100px;
}

/* --- FOOTER --- */
.footer {
    border-top: 1px solid var(--border);
    padding: 3rem 0 2rem;
    transition: border-color 0.4s;
}

.footer__inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer__top {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 2.5rem;
}

.footer__brand {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer__logo-svg {
    width: 28px;
    height: 28px;
    fill: var(--logo-fill);
    stroke: var(--logo-stroke);
    stroke-width: 2;
    transition: fill 0.4s, stroke 0.4s;
}

.footer__name {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--text-bright);
    transition: color 0.4s;
}

.footer__tagline {
    font-size: 0.8rem;
    color: var(--text-dim);
}

.footer__links {
    display: flex;
    gap: 2rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--text-dim);
}

.footer__links a:hover { color: var(--accent); }

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
    color: var(--text-dim);
}

/* --- ANIMATIONS --- */
[data-anim] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-anim="fade-left"] { transform: translateX(40px); }
[data-anim].is-visible { opacity: 1; transform: translate(0); }

[data-delay="1"] { transition-delay: 0.1s; }
[data-delay="2"] { transition-delay: 0.2s; }
[data-delay="3"] { transition-delay: 0.3s; }
[data-delay="4"] { transition-delay: 0.45s; }

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        min-height: auto;
        padding-top: 7rem;
        padding-bottom: 3rem;
    }

    .hero__logo-mark {
        max-width: 300px;
        margin: 0 auto;
    }

    .about__inner,
    .contact__inner {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .cap-row {
        grid-template-columns: 40px 1fr auto;
    }

    .cap-row__desc { display: none; }
}

@media (max-width: 768px) {
    .nav__links { display: none; }
    .nav__toggle { display: flex; }

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

    .about__hex-grid {
        grid-template-columns: repeat(3, 1fr);
        max-width: 300px;
    }

    .cap-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .cap-row__num { display: none; }
    .cap-row__tag { justify-self: start; }

    .footer__top {
        flex-direction: column;
        gap: 1.5rem;
    }

    .footer__bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section__inner { padding: 0 1.25rem; }
    .hero { padding: 6rem 1.25rem 2rem; }
    .hero__actions { flex-direction: column; }
    .btn--full, .hero__actions .btn { width: 100%; text-align: center; }
}
