/* Septima — spt- prefix */
*, *::before, *::after { box-sizing: border-box; }
html, body {
  width: 100%; max-width: 100vw; min-width: 300px; overflow-x: hidden;
  margin: 0; padding: 0;
  font-family: 'Inter', 'Manrope', system-ui, sans-serif;
  background: #11121C; color: #E2E8F0; line-height: 1.6;
}
body { padding-top: 76px; }
svg, img, canvas { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }

.spt-container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 16px; }

:root {
  --spt-obsidian: #11121C;
  --spt-indigo: #6366F1;
  --spt-teal: #14B8A6;
  --spt-glass: rgba(255,255,255,0.06);
}

/* Header */
.spt-header { position: fixed; top: 0; left: 0; right: 0; width: 100%; z-index: 1000; background: rgba(17,18,28,0.85); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid rgba(99,102,241,0.25); transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease; }
.spt-header__inner { display: flex !important; align-items: center !important; justify-content: space-between !important; width: 100% !important; max-width: 1240px !important; padding: 12px 16px !important; gap: 16px; margin: 0 auto; }
.spt-logo { display: inline-flex !important; align-items: center !important; gap: 10px !important; white-space: nowrap !important; flex-shrink: 0 !important; font-size: clamp(1rem, 4vw, 1.35rem) !important; line-height: 1.1 !important; font-weight: 700; }
.spt-logo__mark { width: 38px; height: 38px; flex-shrink: 0; }
.spt-logo__accent { color: var(--spt-indigo); }
.spt-nav__list { display: flex; gap: 22px; list-style: none; margin: 0; padding: 0; }
.spt-nav__link { font-size: 0.9rem; color: #CBD5E1; transition: color .2s; }
.spt-nav__link:hover { color: var(--spt-teal); }
.spt-burger { display: none; flex-direction: column; gap: 5px; padding: 8px; margin-left: auto !important; flex-shrink: 0 !important; }
.spt-burger__line { width: 24px; height: 2px; background: #E2E8F0; }
.spt-mobile-menu { display: none !important; flex-direction: column; gap: 0; }
.spt-mobile-menu.spt-open { display: flex !important; }
.spt-mobile-menu a { padding: 12px 0; border-bottom: 1px solid rgba(226,232,240,0.08); font-size: 0.9rem; }

/* Hero */
.spt-hero { padding: 60px 0 80px; background: radial-gradient(ellipse at 50% 20%, rgba(99,102,241,0.15), transparent 60%), radial-gradient(ellipse at 80% 70%, rgba(20,184,166,0.1), transparent 60%); position: relative; overflow: hidden; }
.spt-hero__grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 40px; align-items: center; }
.spt-hero__badge { display: inline-block; padding: 6px 14px; border-radius: 999px; background: rgba(99,102,241,0.15); color: var(--spt-indigo); font-size: 0.85rem; font-weight: 600; margin-bottom: 18px; border: 1px solid rgba(99,102,241,0.3); }
.spt-hero__title { font-size: clamp(2rem,5vw,3.4rem); line-height: 1.1; margin: 0 0 18px; font-weight: 800; }
.spt-hero__title span { background: linear-gradient(135deg, var(--spt-indigo), var(--spt-teal)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.spt-hero__subtitle { font-size: 1.05rem; color: #94A3B8; margin-bottom: 28px; max-width: 520px; }
.spt-hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 28px; }
.spt-hero__svg { width: 100%; max-width: 520px; margin: 0 auto; }

/* Buttons */
.spt-btn {
  font-size: clamp(0.75rem,2.5vw,0.95rem);
  padding: clamp(10px,2.2vw,14px) clamp(16px,3.5vw,24px);
  white-space: normal; line-height: 1.25; text-align: center; max-width: 100%;
  font-weight: 600; border-radius: 12px;
  background: linear-gradient(135deg, var(--spt-indigo), #4f46e5); color: #fff;
  box-shadow: 0 8px 24px rgba(99,102,241,0.35);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: transform .2s;
}
.spt-btn:hover { transform: translateY(-2px); }
.spt-btn--ghost { background: transparent; color: #E2E8F0; border: 1px solid rgba(226,232,240,0.25); box-shadow: none; }
.spt-btn--ghost:hover { border-color: var(--spt-teal); color: var(--spt-teal); }
.spt-btn--full { width: 100%; }

/* Metrics */
.spt-metrics { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; }
.spt-metric { background: var(--spt-glass); border: 1px solid rgba(99,102,241,0.2); border-radius: 14px; padding: 16px; text-align: center; backdrop-filter: blur(8px); }
.spt-metric__value { font-size: clamp(1.4rem,4vw,2rem); font-weight: 800; background: linear-gradient(135deg, var(--spt-indigo), var(--spt-teal)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.spt-metric__label { font-size: 0.8rem; color: #94A3B8; margin-top: 4px; }

/* Sections */
.spt-section { padding: 70px 0; }
.spt-section__head { text-align: center; margin-bottom: 40px; }
.spt-section__title { font-size: clamp(1.6rem,4vw,2.4rem); margin: 0 0 12px; font-weight: 800; }
.spt-section__title span { color: var(--spt-teal); }
.spt-section__desc { color: #94A3B8; max-width: 640px; margin: 0 auto; }

/* Services */
.spt-services__grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
.spt-service { background: var(--spt-glass); border: 1px solid rgba(99,102,241,0.2); border-radius: 18px; padding: 24px; backdrop-filter: blur(8px); transition: .2s; }
.spt-service:hover { border-color: var(--spt-teal); transform: translateY(-4px); }
.spt-service__icon { width: 56px; height: 56px; margin-bottom: 14px; }
.spt-service__title { font-size: 1.15rem; margin: 0 0 8px; color: var(--spt-indigo); }
.spt-service__desc { font-size: 0.92rem; color: #94A3B8; margin-bottom: 12px; }
.spt-service__features { list-style: none; padding: 0; margin: 0 0 12px; font-size: 0.85rem; color: #94A3B8; }
.spt-service__features li { padding: 4px 0; padding-left: 16px; position: relative; }
.spt-service__features li::before { content: "◆"; position: absolute; left: 0; color: var(--spt-teal); font-size: 0.7rem; }
.spt-service__price { font-weight: 700; color: var(--spt-teal); }

/* 7 levels */
.spt-levels { display: grid; grid-template-columns: repeat(1, minmax(0,1fr)); gap: 12px; max-width: 720px; margin: 0 auto; }
.spt-level {
  display: flex; align-items: center; gap: 16px;
  background: var(--spt-glass); border: 1px solid rgba(99,102,241,0.2); border-radius: 14px; padding: 16px 20px;
  backdrop-filter: blur(8px); cursor: pointer; transition: .2s;
}
.spt-level:hover { border-color: var(--spt-teal); }
.spt-level__num { font-size: 1.6rem; font-weight: 800; color: var(--spt-indigo); min-width: 40px; }
.spt-level__title { font-weight: 700; color: #E2E8F0; margin-bottom: 2px; }
.spt-level__desc { font-size: 0.85rem; color: #94A3B8; }
.spt-level.spt-active { border-color: var(--spt-teal); background: rgba(20,184,166,0.08); }

/* Calculator */
.spt-calc__grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 24px; }
.spt-calc__panel { background: var(--spt-glass); border: 1px solid rgba(99,102,241,0.2); border-radius: 20px; padding: 28px; backdrop-filter: blur(8px); }
.spt-fieldset { border: none; padding: 0; margin: 0 0 20px; }
.spt-fieldset__legend { font-weight: 700; color: var(--spt-indigo); margin-bottom: 14px; font-size: 1rem; }
.spt-field { margin-bottom: 16px; }
.spt-label { display: block; font-size: 0.9rem; margin-bottom: 6px; color: #CBD5E1; }
.spt-range { width: 100%; accent-color: var(--spt-teal); }
.spt-range__output { text-align: right; font-weight: 700; color: var(--spt-teal); margin-top: 4px; }
.spt-select, .spt-input, .spt-textarea {
  width: 100%; max-width: 100%; min-width: 0; box-sizing: border-box;
  padding: 10px 12px; background: rgba(17,18,28,0.6); border: 1px solid rgba(99,102,241,0.3); color: #E2E8F0; font-size: 0.95rem; border-radius: 10px;
}
.spt-textarea { resize: vertical; min-height: 90px; }
.spt-modules { display: flex; flex-direction: column; gap: 8px; }
.spt-module { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid rgba(99,102,241,0.2); border-radius: 10px; cursor: pointer; }
.spt-module input { accent-color: var(--spt-teal); }
.spt-module__cost { margin-left: auto; font-size: 0.8rem; color: var(--spt-teal); }
.spt-steps { display: flex; flex-direction: column; gap: 8px; }
.spt-step { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid rgba(99,102,241,0.2); border-radius: 10px; cursor: pointer; }
.spt-step input { accent-color: var(--spt-indigo); }
.spt-step__cost { margin-left: auto; font-size: 0.8rem; color: var(--spt-indigo); }

/* Result */
.spt-result__card { background: linear-gradient(160deg, rgba(99,102,241,0.12), rgba(20,184,166,0.08)); border: 1px solid rgba(99,102,241,0.3); border-radius: 20px; padding: 28px; }
.spt-result__header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.spt-result__badge { background: var(--spt-indigo); color: #fff; padding: 4px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 700; }
.spt-result__mode { font-weight: 600; color: var(--spt-teal); }
.spt-result__main { text-align: center; margin: 20px 0; }
.spt-result__value { font-size: clamp(2rem,6vw,3rem); font-weight: 800; color: var(--spt-teal); }
.spt-result__unit { font-size: 1.2rem; color: #94A3B8; }
.spt-breakdown__row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid rgba(226,232,240,0.08); font-size: 0.9rem; }
.spt-breakdown__total { font-weight: 700; color: var(--spt-indigo); border-bottom: none; }
.spt-result__meta { margin: 16px 0; font-size: 0.9rem; color: #94A3B8; }
.spt-result__meta div { padding: 4px 0; }

/* Cases */
.spt-cases__grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
.spt-case { background: var(--spt-glass); border: 1px solid rgba(99,102,241,0.2); border-radius: 18px; padding: 24px; backdrop-filter: blur(8px); }
.spt-case__badge { display: inline-block; background: rgba(99,102,241,0.15); color: var(--spt-indigo); padding: 4px 10px; border-radius: 999px; font-size: 0.75rem; margin-bottom: 10px; }
.spt-case__title { font-size: 1.1rem; margin: 0 0 10px; }
.spt-case__metrics { display: flex; flex-wrap: wrap; gap: 8px; font-size: 0.8rem; color: #94A3B8; margin-bottom: 10px; }
.spt-case__desc { font-size: 0.9rem; color: #94A3B8; margin-bottom: 10px; }
.spt-case__result { font-weight: 700; color: var(--spt-teal); font-size: 0.9rem; }

/* About */
.spt-about__grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 30px; align-items: center; }
.spt-about__stats { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; margin: 20px 0; }
.spt-stat { background: var(--spt-glass); border: 1px solid rgba(99,102,241,0.2); border-radius: 12px; padding: 16px; text-align: center; }
.spt-stat__value { font-size: 1.6rem; font-weight: 800; color: var(--spt-teal); }
.spt-stat__label { font-size: 0.8rem; color: #94A3B8; }
.spt-about__values { display: flex; flex-direction: column; gap: 12px; }
.spt-value { display: flex; gap: 12px; align-items: flex-start; }
.spt-value__icon { width: 36px; height: 36px; flex-shrink: 0; }
.spt-value__title { font-weight: 700; color: var(--spt-indigo); margin-bottom: 4px; }
.spt-value__desc { font-size: 0.88rem; color: #94A3B8; }
.spt-about__visual { text-align: center; }

/* Contact form */
.spt-form__grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.spt-field--full { grid-column: 1 / -1; }
.spt-checkbox { display: flex; flex-direction: row; align-items: flex-start; gap: 10px; }
.spt-checkbox input[type="checkbox"] { width: 20px; height: 20px; flex-shrink: 0; accent-color: var(--spt-teal); }
.spt-checkbox span { font-size: 0.85rem; color: #94A3B8; }

/* Contacts */
.spt-contacts { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; margin-top: 30px; }
.spt-contact-card { background: var(--spt-glass); border: 1px solid rgba(99,102,241,0.2); border-radius: 14px; padding: 18px; text-align: center; backdrop-filter: blur(8px); }
.spt-contact-card__title { font-weight: 700; color: var(--spt-indigo); margin-bottom: 6px; font-size: 0.9rem; }
.spt-contact-card__value { display: block; font-size: 0.9rem; margin: 4px 0; }
.spt-contact-card__sub { font-size: 0.75rem; color: #94A3B8; }

/* Footer */
.spt-footer { background: #0a0b14; padding: 50px 0 20px; margin-top: 40px; border-top: 1px solid rgba(99,102,241,0.2); }
.spt-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; }
.spt-footer__tagline { color: #94A3B8; font-size: 0.9rem; margin: 12px 0; }
.spt-footer__col-title { color: var(--spt-indigo); font-weight: 700; margin-bottom: 10px; }
.spt-footer__col ul { list-style: none; padding: 0; margin: 0; }
.spt-footer__col li { padding: 4px 0; font-size: 0.85rem; color: #94A3B8; }
.spt-footer__col a:hover { color: var(--spt-teal); }
.spt-footer__bottom { border-top: 1px solid rgba(226,232,240,0.08); margin-top: 30px; padding-top: 16px; text-align: center; font-size: 0.8rem; color: #94A3B8; }

/* Modal */
.spt-modal { position: fixed; inset: 0; z-index: 100; display: none; }
.spt-modal.spt-open { display: flex; align-items: center; justify-content: center; }
.spt-modal__overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.75); }
.spt-modal__content { position: relative; background: var(--spt-obsidian); border: 1px solid var(--spt-indigo); border-radius: 20px; padding: 28px; max-width: 480px; width: 90%; max-height: 90vh; overflow-y: auto; }
.spt-modal__close { position: absolute; top: 12px; right: 16px; font-size: 1.6rem; color: #E2E8F0; }
.spt-modal__title { margin: 0 0 16px; color: var(--spt-indigo); }

/* Responsive */
@media (max-width: 992px) {
  .spt-hero__grid, .spt-calc__grid, .spt-about__grid, .spt-form__grid {
    grid-template-columns: minmax(0,1fr) !important; flex-direction: column !important; width: 100% !important;
  }
  .spt-services__grid { grid-template-columns: minmax(0,1fr) !important; }
  .spt-cases__grid { grid-template-columns: minmax(0,1fr) !important; }
  .spt-contacts { grid-template-columns: repeat(2, minmax(0,1fr)) !important; }
  .spt-footer__grid { grid-template-columns: 1fr !important; }
  .spt-nav { display: none; }
  .spt-burger { display: flex; }
  .spt-mobile-menu { display: none !important; }
  .spt-mobile-menu.spt-open { display: flex !important; }
  .spt-metrics { grid-template-columns: repeat(2, minmax(0,1fr)) !important; gap: 12px; }
  .spt-about__stats { grid-template-columns: repeat(2, minmax(0,1fr)) !important; }
  input, select, textarea, .spt-input, .spt-select, .spt-textarea, button, .spt-btn {
    width: 100%; max-width: 100%; min-width: 0; white-space: normal; word-break: normal; box-sizing: border-box;
  }
  .spt-checkbox { display: flex; flex-direction: row; align-items: flex-start; gap: 10px; }
  .spt-checkbox input[type="checkbox"] { width: 20px; height: 20px; flex-shrink: 0; }
}
@media (max-width: 768px) {
  .spt-metrics { grid-template-columns: repeat(2, minmax(0,1fr)) !important; gap: 12px; }
  .spt-contacts { grid-template-columns: 1fr !important; }
  .spt-services__grid { grid-template-columns: minmax(0,1fr) !important; }
}
@media (min-width: 993px) {
  .spt-services__grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .spt-cases__grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .spt-contacts { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .spt-footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .spt-hero__grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .spt-calc__grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .spt-about__grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .spt-form__grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .spt-metrics { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .spt-about__stats { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .spt-mobile-menu { display: none !important; }
  .spt-burger { display: none; }
  .spt-nav { display: block; }
}
.spt-btn, button, .spt-module, .spt-step {
  font-size: clamp(0.75rem,2.5vw,0.95rem);
  padding: clamp(10px,2.2vw,14px) clamp(16px,3.5vw,24px);
  white-space: normal; line-height: 1.25; text-align: center; max-width: 100%;
  box-sizing: border-box;
}