/* ═══════════════════════════════════════
           DESIGN TOKENS
           ═══════════════════════════════════════ */
:root {
    --bg:          #050714;
    --bg-deep:     #020308;
    --bg-card:     #080b21;
    --bg-header:   rgba(5, 7, 20, 0.92);
    --border:      rgba(255, 255, 255, 0.08);
    --border-f:    #1e1e1e;
    --t1:          #e8e8e8;
    --tw:          #ffffff;
    --td:          rgba(255, 255, 255, 0.6);
    --td-inactive: rgba(255, 255, 255, 0.45);
    --tm:          #777;
    --acc:         #0472FF;
    --acc-hover:   #0560d4;
    --acc-glow:    rgba(4, 114, 255, 0.2);
    --err:         #F56565;
    --err-glow:    rgba(245, 101, 101, 0.18);
    --ok:          #48BB78;
    --ok-glow:     rgba(72, 187, 120, 0.18);
    --fd:          'Chakra Petch', sans-serif;
    --fb:          'Inter', sans-serif;
    --hh:          72px;
    --ease:        cubic-bezier(0.16, 1, 0.3, 1);
}

/* LIGHT THEME */
html[data-theme="light"] {
    --bg:          #F3F3F3;
    --bg-deep:     #FFFFFF;
    --bg-card:     #FFFFFF;
    --bg-header:   rgba(243, 243, 243, 0.94);
    --border:      rgba(0, 0, 0, 0.12);
    --border-f:    #D8D8D8;
    --t1:          #282828;
    --tw:          #1A1A1A;
    --td:          #404040;
    --td-inactive: #5A5A5A;
    --tm:          #767676;
    --acc:         #0040B8;
    --acc-hover:   #002E8A;
    --acc-glow:    rgba(0, 64, 184, 0.14);
    --err:         #C53030;
    --err-glow:    rgba(197, 48, 48, 0.12);
    --ok:          #276749;
    --ok-glow:     rgba(39, 103, 73, 0.12);
}

/* RESET */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { background: var(--bg); color: var(--tw); font-family: var(--fb); font-size: 17px; line-height: 1.6; overflow-x: hidden; min-height: 100vh; display: flex; flex-direction: column; }
a { color: inherit; text-decoration: none; }

/* Grain overlay */
body::before { content: ''; position: fixed; inset: 0; z-index: 9999; pointer-events: none; opacity: .018; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); background-size: 200px; }

/* ═══════════════════════════════════════
   HEADER
   ═══════════════════════════════════════ */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    height: var(--hh); display: flex; align-items: center; padding: 0 48px;
    background: var(--bg-header); backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border);
    transition: background .4s;
}
.header__logo { position: relative; width: 164px; height: 40px; flex-shrink: 0; margin-right: auto; display: flex; align-items: center; }
.header__logo-lottie { width: 164px; height: 40px; }
.header__nav { display: flex; align-items: center; gap: 36px; }
.header__nav-link { font-size: 15.4px; font-weight: 500; color: var(--td); padding: 24px 0; position: relative; transition: color 0.15s; }
.header__nav-link::after { content: ''; position: absolute; bottom: 18px; left: 0; width: 0; height: 1px; background: var(--tw); transition: width 0.15s var(--ease); }
.header__nav-link:hover { color: var(--tw); }
.header__nav-link:hover::after { width: 100%; }
.header__nav-link.disabled { opacity: 0.5; pointer-events: none; }

.header__cta {
    margin-left: 36px; padding: 7px 24px; background: var(--acc); color: #fff;
    font-size: 14.3px; font-weight: 600; transition: background .3s, box-shadow .3s, transform .2s;
}
.header__cta:hover { background: var(--acc-hover); box-shadow: 0 0 32px var(--acc-glow); transform: scale(1.02); }

/* Theme toggle */
.theme-toggle {
    background: none; border: 1px solid var(--border); cursor: pointer;
    width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
    color: var(--td); transition: color .2s, border-color .2s; flex-shrink: 0; margin-left: 36px;
}
.theme-toggle:hover { color: var(--tw); border-color: var(--td); }
.theme-toggle svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
html[data-theme="light"] .theme-toggle__sun { display: none; }
html[data-theme="dark"]  .theme-toggle__moon { display: none; }
html:not([data-theme])   .theme-toggle__moon { display: none; }

html[data-theme="light"] .header__cta { color: #fff; }
html[data-theme="light"] .header__nav-link::after { background: var(--tw); }
html[data-theme="light"] .footer { --bg-deep: #020308; --border-f: #1e1e1e; }

/* ═══════════════════════════════════════
   PAGE LAYOUT
   ═══════════════════════════════════════ */
.contact-page { flex: 1; padding-top: var(--hh); }

/* ── Hero band ── */
.contact-hero {
    padding: 72px 48px 56px;
    border-bottom: 1px solid var(--border);
    position: relative; overflow: hidden;
}
.contact-hero::before {
    content: '/';
    font-family: var(--fd); font-weight: 700; font-size: 480px; line-height: 1;
    background: linear-gradient(180deg, #CDF8FF 1.6%, #1B72E9 101%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    position: absolute; right: -40px; top: -120px; opacity: .06; pointer-events: none;
    user-select: none;
}
.contact-hero__back {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 13.2px; font-weight: 500; color: var(--td-inactive);
    letter-spacing: .04em; margin-bottom: 32px;
    transition: color .2s;
}
.contact-hero__back:hover { color: var(--tw); }
.contact-hero__back svg { width: 14px; height: 14px; flex-shrink: 0; }
.contact-hero__label { font-size: 12.1px; font-weight: 500; color: var(--acc); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 12px; }
.contact-hero__heading { font-family: var(--fd); font-size: 52px; font-weight: 700; color: var(--t1); letter-spacing: -.02em; line-height: 1.1; max-width: 600px; }

/* ── Body grid ── */
.contact-body {
    display: grid; grid-template-columns: 380px 1fr; gap: 80px;
    max-width: 1200px; padding: 72px 48px 120px;
}

/* ── Left panel ── */
.contact-info { padding-top: 4px; }
.contact-info__title { font-family: var(--fd); font-size: 22px; font-weight: 700; color: var(--t1); margin-bottom: 16px; line-height: 1.3; }
.contact-info__desc { font-size: 16px; color: var(--td); line-height: 28px; margin-bottom: 40px; }
.contact-info__divider { width: 48px; height: 2px; background: linear-gradient(90deg, #CDF8FF, #1B72E9); margin-bottom: 32px; }
.contact-info__detail { display: flex; flex-direction: column; gap: 6px; margin-bottom: 24px; }
.contact-info__detail-label { font-size: 11px; font-weight: 600; color: var(--td-inactive); letter-spacing: .1em; text-transform: uppercase; }
.contact-info__detail-value { font-size: 15px; color: var(--t1); }
.contact-info__note { margin-top: 48px; padding: 20px 20px 20px 24px; border-left: 2px solid var(--border); }
.contact-info__note p { font-size: 13.2px; color: var(--td); line-height: 22px; }

/* ═══════════════════════════════════════
   FORM
   ═══════════════════════════════════════ */
.contact-form { display: flex; flex-direction: column; gap: 0; }

/* ── Field wrapper ── */
.field { display: flex; flex-direction: column; margin-bottom: 28px; }
.field:last-of-type { margin-bottom: 0; }

/* ── Label ── */
.field__label {
    font-size: 12.1px; font-weight: 600; color: var(--td-inactive);
    letter-spacing: .06em; text-transform: uppercase; margin-bottom: 8px;
    display: flex; align-items: center; gap: 6px;
}
.field__label .required-star { color: var(--acc); font-size: 14px; line-height: 1; }

/* ── Input / Textarea (DEFAULT STATE) ── */
.field__input {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--tw);
    font-family: var(--fb); font-size: 16px;
    padding: 14px 16px;
    outline: none;
    transition: border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s;
    -webkit-appearance: none; appearance: none;
    width: 100%;
}
.field__input::placeholder { color: var(--td-inactive); }

/* FOCUSED STATE */
.field__input:focus {
    border-color: var(--acc);
    box-shadow: 0 0 0 3px var(--acc-glow);
}

/* FILLED STATE (via JS class) */
.field.is-filled .field__input {
    border-color: var(--border);
}

/* ERROR STATE */
.field.has-error .field__input {
    border-color: var(--err);
    box-shadow: 0 0 0 3px var(--err-glow);
}
.field.has-error .field__input:focus {
    border-color: var(--err);
    box-shadow: 0 0 0 3px var(--err-glow);
}

/* SUCCESS / VALID STATE */
.field.is-valid .field__input {
    border-color: rgba(72, 187, 120, 0.5);
}
html[data-theme="light"] .field.is-valid .field__input {
    border-color: rgba(39, 103, 73, 0.4);
}

/* DISABLED STATE */
.field__input:disabled {
    opacity: .45; cursor: not-allowed;
    border-color: var(--border); box-shadow: none;
}

/* Textarea specific */
textarea.field__input {
    resize: vertical; min-height: 140px; line-height: 1.6;
}

/* ── Helper / error text ── */
.field__meta {
    display: flex; justify-content: space-between; align-items: flex-start;
    margin-top: 7px; min-height: 18px; gap: 12px;
}
.field__error {
    font-size: 12.1px; color: var(--err); line-height: 1.4;
    display: none; flex: 1;
}
.field.has-error .field__error { display: block; }
.field__error svg { width: 12px; height: 12px; display: inline; vertical-align: middle; margin-right: 4px; }

.field__counter {
    font-size: 11px; color: var(--td-inactive); white-space: nowrap; flex-shrink: 0;
    transition: color .2s;
}
.field__counter.is-low { color: var(--err); }
.field__counter.is-ok  { color: var(--ok); }

/* ── Submit row ── */
.form-actions { display: flex; align-items: center; gap: 20px; margin-top: 8px; flex-wrap: wrap; }

.btn-submit {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 16px 36px; background: var(--acc); color: #fff;
    font-family: var(--fb); font-size: 15.4px; font-weight: 600;
    border: none; cursor: pointer; outline: none;
    transition: background .2s, box-shadow .2s, transform .15s var(--ease), opacity .2s;
}
.btn-submit:hover { background: var(--acc-hover); box-shadow: 0 0 40px var(--acc-glow); transform: translateY(-1px); }
.btn-submit:active { transform: translateY(0); }
.btn-submit:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-submit__arrow { transition: transform .3s var(--ease); }
.btn-submit:not(:disabled):hover .btn-submit__arrow { transform: translateX(3px); }

/* Spinner */
.btn-submit__spinner {
    width: 16px; height: 16px; border: 2px solid rgba(255,255,255,.3);
    border-top-color: #fff; border-radius: 50%;
    animation: spin .7s linear infinite; display: none;
}
.btn-submit.is-loading .btn-submit__spinner { display: block; }
.btn-submit.is-loading .btn-submit__label { display: none; }
.btn-submit.is-loading .btn-submit__arrow { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

.form-privacy {
    font-size: 12.1px; color: var(--td-inactive); line-height: 1.5; max-width: 320px;
}
.form-privacy a { color: var(--acc); }
.form-privacy a:hover { text-decoration: underline; }

/* ── Success page (full-area replacement) ── */
.form-success {
    display: none;
}
.form-success.is-visible {
    display: flex; flex-direction: column; align-items: flex-start;
    animation: fadeUp .6s var(--ease) forwards;
}

/* Check icon ring */
.form-success__icon {
    width: 72px; height: 72px; position: relative;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 32px;
}
.form-success__icon::before {
    content: '';
    position: absolute; inset: 0;
    border: 1.5px solid rgba(72,187,120,.35);
    border-radius: 50%;
    animation: ringPulse 2s ease-out infinite;
}
@keyframes ringPulse {
    0%   { transform: scale(1);   opacity: 1; }
    100% { transform: scale(1.6); opacity: 0; }
}
.form-success__icon-inner {
    width: 56px; height: 56px; border-radius: 50%;
    background: rgba(72,187,120,.12);
    display: flex; align-items: center; justify-content: center;
}
html[data-theme="light"] .form-success__icon-inner { background: rgba(39,103,73,.1); }
.form-success__icon svg { width: 24px; height: 24px; stroke: var(--ok); fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }

/* Text */
.form-success__label { font-size: 12.1px; font-weight: 600; color: var(--ok); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 12px; }
.form-success__heading { font-family: var(--fd); font-size: 40px; font-weight: 700; color: var(--t1); line-height: 1.1; letter-spacing: -.02em; margin-bottom: 20px; }
.form-success__text { font-size: 17px; color: var(--td); line-height: 1.7; max-width: 480px; margin-bottom: 40px; }

/* Steps */
.form-success__steps { display: flex; flex-direction: column; gap: 12px; margin-bottom: 48px; }
.form-success__step { display: flex; align-items: flex-start; gap: 14px; }
.form-success__step-num {
    width: 24px; height: 24px; flex-shrink: 0;
    background: linear-gradient(180deg, #CDF8FF 0%, #1B72E9 100%);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--fd); font-size: 11px; font-weight: 700; color: #fff;
}
.form-success__step-text { font-size: 14px; color: var(--td); line-height: 1.5; padding-top: 4px; }

/* Actions */
.form-success__actions { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.form-success__home {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 32px; background: var(--acc); color: #fff;
    font-family: var(--fb); font-size: 15px; font-weight: 600;
    transition: background .2s, box-shadow .2s, transform .15s var(--ease);
}
.form-success__home:hover { background: var(--acc-hover); box-shadow: 0 0 40px var(--acc-glow); transform: translateY(-1px); }
.form-success__back {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 14px; font-weight: 500; color: var(--td-inactive);
    cursor: pointer; background: none; border: none; font-family: var(--fb);
    padding: 0; transition: color .2s;
}
.form-success__back:hover { color: var(--tw); }

@keyframes fadeUp { from { opacity:0; transform:translateY(12px); } to { opacity:1; transform:translateY(0); } }

/* ── General error banner (submit-level) ── */
.form-banner {
    display: none; align-items: flex-start; gap: 12px;
    padding: 14px 18px; border-left: 3px solid var(--err);
    background: var(--err-glow); margin-bottom: 24px;
    font-size: 14px; color: var(--t1);
}
.form-banner.is-visible { display: flex; }
.form-banner svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; stroke: var(--err); fill: none; stroke-width: 2; stroke-linecap: round; }

/* ═══════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════ */
.footer { background: var(--bg-deep); border-top: 1px solid var(--border-f); padding: 72px 48px 48px; margin-top: auto; }
.footer__top { display: grid; grid-template-columns: 220px repeat(5, 1fr); gap: 40px; margin-bottom: 56px; }
.footer__brand { display: flex; flex-direction: column; gap: 16px; }
.footer__brand-desc { font-size: 14.3px; color: var(--td-inactive); line-height: 20px; }
.footer__logo-wrap { display: block; width: 164px; height: 40px; }
.footer__col-title { font-family: var(--fd); font-size: 15.4px; font-weight: 600; color: var(--t1); margin-bottom: 16px; }
.footer__col-links { display: flex; flex-direction: column; gap: 8px; }
.footer__col-link { font-size: 14.3px; color: var(--td-inactive); transition: color .1s; }
.footer__col-link:hover { color: var(--tw); }
.footer__bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 32px; border-top: 1px solid var(--border-f); }
.footer__legal { display: flex; gap: 24px; flex-wrap: wrap; }
.footer__legal-link { font-size: 13.2px; color: var(--tm); transition: color .2s; }
.footer__legal-link:hover { color: var(--td); }
.footer__social { display: flex; gap: 20px; }
.footer__social-link { font-size: 13.2px; font-weight: 500; color: var(--tm); letter-spacing: .72px; transition: color .2s; }
.footer__social-link:hover { color: var(--tw); }

/* ═══════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════ */
@media (max-width: 1024px) {
    .contact-body { grid-template-columns: 1fr; gap: 48px; padding: 56px 32px 80px; }
    .contact-hero { padding: 56px 32px 48px; }
    .contact-info { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
    .contact-info__divider { display: none; }
    .contact-info__note { margin-top: 0; }
}
@media (max-width: 768px) {
    :root { --hh: 60px; }
    .header { padding: 0 24px; }
    .header__nav, .header__cta { display: none; }
    .theme-toggle { margin-left: auto; }
    .contact-hero { padding: 40px 24px 36px; }
    .contact-hero__heading { font-size: 36px; }
    .contact-body { padding: 40px 24px 72px; }
    .contact-info { grid-template-columns: 1fr; }
    .footer { padding: 48px 24px 36px; }
    .footer__top { grid-template-columns: 1fr 1fr; }
    .footer__brand { grid-column: 1 / -1; }
    .footer__bottom { flex-direction: column; gap: 16px; align-items: flex-start; }
}

/* ── Cookie Banner ── */
.cookie-banner {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 9000;
    background: #020308; border-top: 1px solid rgba(255,255,255,0.1);
    padding: 28px 48px; display: flex; align-items: center; gap: 48px;
    transform: translateY(100%); transition: transform 0.4s var(--ease);
}
.cookie-banner.visible { transform: translateY(0); }
.cookie-banner__text { flex: 1; }
.cookie-banner__title { font-family: var(--fd); font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 8px; line-height: 1.2; }
.cookie-banner__desc { font-size: 14px; color: rgba(255,255,255,0.55); line-height: 1.6; }
.cookie-banner__desc a { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.cookie-banner__actions { display: flex; flex-direction: column; gap: 8px; flex-shrink: 0; }
.cookie-btn {
    min-width: 160px; padding: 12px 24px;
    background: transparent; border: 1px solid rgba(255,255,255,0.35);
    color: #fff; font-family: var(--fd); font-size: 15px; font-weight: 500;
    letter-spacing: .03em; cursor: pointer; text-align: center;
    transition: border-color .15s, background .15s; border-radius: 2px;
}
.cookie-btn:hover { border-color: #fff; background: rgba(255,255,255,0.06); }
.cookie-btn--accept { border-color: var(--acc); }
.cookie-btn--accept:hover { background: var(--acc); border-color: var(--acc); }
@media (max-width: 768px) {
    .cookie-banner { flex-direction: column; align-items: flex-start; gap: 20px; padding: 24px; }
    .cookie-banner__actions { flex-direction: row; flex-wrap: wrap; width: 100%; }
    .cookie-btn { flex: 1; min-width: 100px; }
}