@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* =========================================================
   THEME VARIABLES
   ========================================================= */

:root {
  --color-bg: #050816;
  --color-bg-secondary: #080c1d;
  --color-surface: #0e1328;
  --color-surface-dark: #050812;

  --color-text: #f4f7ff;
  --color-text-secondary: #aeb8d0;
  --color-text-soft: #9faac4;
  --color-text-muted: #8f9ab6;
  --color-text-faint: #7f8aa8;
  --color-text-dark: #68738f;
  --color-white: #ffffff;

  --color-primary: #7767e8;
  --color-primary-dark: #4f8be8;
  --color-primary-light: #b9adff;
  --color-primary-soft: #a99cff;
  --color-primary-pale: #d8d1ff;

  --gradient-primary:
    linear-gradient(
      110deg,
      var(--color-primary),
      var(--color-primary-dark)
    );

  --gradient-text:
    linear-gradient(
      110deg,
      #ffffff,
      #b7a9ff,
      #7db8ff
    );

  --surface-header: rgba(5, 8, 22, 0.82);
  --surface-header-light: rgba(5, 8, 22, 0.78);

  --surface-card: rgba(14, 19, 40, 0.82);
  --surface-card-soft: rgba(14, 19, 40, 0.78);
  --surface-card-light: rgba(14, 19, 40, 0.72);

  --surface-input: rgba(4, 7, 18, 0.72);
  --surface-input-focus: rgba(5, 8, 20, 0.95);

  --surface-overlay: rgba(255, 255, 255, 0.04);
  --surface-overlay-soft: rgba(255, 255, 255, 0.025);

  --surface-accent: rgba(90, 70, 190, 0.10);
  --surface-accent-soft: rgba(90, 70, 190, 0.06);
  --surface-accent-card: rgba(100, 80, 210, 0.07);
  --surface-accent-strong: rgba(110, 90, 220, 0.13);

  --border-light: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.10);
  --border-soft: rgba(255, 255, 255, 0.07);

  --border-primary: rgba(130, 110, 255, 0.30);
  --border-primary-soft: rgba(130, 110, 255, 0.18);
  --border-primary-faint: rgba(130, 110, 255, 0.14);
  --border-primary-strong: rgba(130, 110, 255, 0.28);

  --shadow-card:
    0 25px 80px rgba(0, 0, 0, 0.25);

  --shadow-card-soft:
    0 25px 80px rgba(0, 0, 0, 0.22);

  --shadow-button:
    0 10px 30px rgba(80, 90, 220, 0.20);

  --shadow-button-soft:
    0 10px 30px rgba(70, 80, 220, 0.18);

  --shadow-logo:
    0 15px 35px rgba(70, 80, 200, 0.18);

  --glow-primary: rgba(155, 140, 255, 0.65);
  --glow-primary-soft: rgba(110, 90, 240, 0.10);

  --color-success: #a99aff;
  --color-status: #9b8cff;

  --color-warning: #ffbe5a;
  --color-warning-bg: rgba(255, 170, 60, 0.06);

  --color-notice-text: #d9dcef;
  --color-label: #dce2f2;
  --color-checkbox: #cbd3e5;
  --color-status-text: #dce2f2;
  --color-quote: #ddd9ff;
  --color-tag: #aaa2d7;

  --surface-agreement: rgba(5, 8, 18, 0.55);

  --radius-sm: 10px;
  --radius-md: 13px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-xxl: 26px;
  --radius-pill: 999px;

  --blur-header: blur(18px);
}


/* =========================================================
   LIGHT THEME
   ========================================================= */

[data-theme="light"] {
  --color-bg: #f5f7fb;
  --color-bg-secondary: #eef1f7;
  --color-surface: #ffffff;
  --color-surface-dark: #eef1f7;

  --color-text: #111827;
  --color-text-secondary: #4b5563;
  --color-text-soft: #64748b;
  --color-text-muted: #64748b;
  --color-text-faint: #64748b;
  --color-text-dark: #6b7280;
  --color-white: #ffffff;

  --color-primary: #6655e8;
  --color-primary-dark: #3978d8;
  --color-primary-light: #6655e8;
  --color-primary-soft: #6655e8;
  --color-primary-pale: #6254d9;

  --gradient-text:
    linear-gradient(
      110deg,
      #111827,
      #6655e8,
      #3978d8
    );

  --surface-header: rgba(255, 255, 255, 0.88);
  --surface-header-light: rgba(255, 255, 255, 0.88);

  --surface-card: rgba(255, 255, 255, 0.92);
  --surface-card-soft: rgba(255, 255, 255, 0.90);
  --surface-card-light: rgba(255, 255, 255, 0.85);

  --surface-input: rgba(255, 255, 255, 0.90);
  --surface-input-focus: #ffffff;

  --surface-overlay: rgba(0, 0, 0, 0.04);
  --surface-overlay-soft: rgba(0, 0, 0, 0.025);

  --surface-accent: rgba(102, 85, 232, 0.08);
  --surface-accent-soft: rgba(102, 85, 232, 0.05);
  --surface-accent-card: rgba(102, 85, 232, 0.07);
  --surface-accent-strong: rgba(102, 85, 232, 0.11);

  --border-light: rgba(0, 0, 0, 0.08);
  --border-medium: rgba(0, 0, 0, 0.12);
  --border-soft: rgba(0, 0, 0, 0.07);

  --border-primary: rgba(102, 85, 232, 0.30);
  --border-primary-soft: rgba(102, 85, 232, 0.18);
  --border-primary-faint: rgba(102, 85, 232, 0.14);
  --border-primary-strong: rgba(102, 85, 232, 0.28);

  --shadow-card:
    0 25px 80px rgba(30, 40, 70, 0.10);

  --shadow-card-soft:
    0 25px 80px rgba(30, 40, 70, 0.08);

  --shadow-button:
    0 10px 30px rgba(70, 70, 180, 0.16);

  --shadow-button-soft:
    0 10px 30px rgba(70, 70, 180, 0.14);

  --shadow-logo:
    0 15px 35px rgba(70, 70, 180, 0.12);

  --glow-primary: rgba(102, 85, 232, 0.40);
  --glow-primary-soft: rgba(102, 85, 232, 0.10);

  --color-success: #6655e8;
  --color-status: #6655e8;

  --color-warning: #c77b00;
  --color-warning-bg: rgba(255, 180, 50, 0.08);

  --color-notice-text: #4b5563;
  --color-label: #374151;
  --color-checkbox: #4b5563;
  --color-status-text: #374151;
  --color-quote: #5147a0;
  --color-tag: #5f58a5;

  --surface-agreement: rgba(0, 0, 0, 0.025);
}


/* =========================================================
   RESET
   ========================================================= */

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;

  font-family: 'Inter', sans-serif;
  line-height: 1.6;

  color: var(--color-text);

  background:
    radial-gradient(
      circle at 15% 10%,
      rgba(80, 60, 180, 0.18),
      transparent 35%
    ),
    radial-gradient(
      circle at 85% 20%,
      rgba(30, 100, 220, 0.14),
      transparent 35%
    ),
    var(--color-bg);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font-family: inherit;
}

img {
  max-width: 100%;
}

.container {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
}


/* =========================================================
   GENERIC HEADER
   ========================================================= */

header {
  position: sticky;
  top: 0;
  z-index: 1000;

  background: var(--surface-header-light);

  border-bottom: 1px solid var(--border-light);

  backdrop-filter: var(--blur-header);
  -webkit-backdrop-filter: var(--blur-header);
}

.nav {
  min-height: 72px;

  display: flex;
  align-items: center;
  justify-content: space-between;

  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;

  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand img {
  width: 38px;
  height: 38px;

  object-fit: contain;
  border-radius: var(--radius-sm);
}

.brand span {
  font-size: 16px;
}

.back {
  color: var(--color-text-secondary);

  font-size: 14px;
  font-weight: 600;

  transition: color 0.2s ease;
}

.back:hover {
  color: var(--color-text);
}


/* =========================================================
   HERO
   ========================================================= */

.hero {
  padding: 90px 0 55px;

  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;

  padding: 7px 13px;

  border: 1px solid var(--border-primary);
  background: var(--surface-accent);

  border-radius: var(--radius-pill);

  color: var(--color-primary-light);

  font-size: 12px;
  font-weight: 700;

  letter-spacing: 0.08em;
  text-transform: uppercase;

  margin-bottom: 20px;
}

h1 {
  font-size: clamp(40px, 7vw, 72px);
  line-height: 1.02;

  letter-spacing: -0.055em;

  margin-bottom: 18px;
}

.gradient {
  background: var(--gradient-text);

  -webkit-background-clip: text;
  background-clip: text;

  color: transparent;
}

.hero p {
  max-width: 720px;

  margin: 0 auto;

  color: var(--color-text-secondary);

  font-size: 17px;
}


/* =========================================================
   NOTICE
   ========================================================= */

.notice {
  max-width: 760px;

  margin: 35px auto 0;

  padding: 18px 20px;

  border: 1px solid rgba(255, 190, 90, 0.25);

  background: var(--color-warning-bg);

  border-radius: var(--radius-lg);

  color: var(--color-notice-text);

  text-align: left;

  font-size: 14px;
}

.notice strong {
  color: var(--color-text);
}


/* =========================================================
   MAIN
   ========================================================= */

main {
  padding-bottom: 90px;
}


/* =========================================================
   CARD
   ========================================================= */

.card {
  padding: clamp(22px, 5vw, 42px);

  background: var(--surface-card);

  border: 1px solid var(--border-light);
  border-radius: var(--radius-xxl);

  box-shadow: var(--shadow-card);
}


/* =========================================================
   FORM SECTIONS
   ========================================================= */

.form-section {
  display: grid;
  gap: 18px;
}

.form-section + .form-section {
  padding-top: 30px;
  margin-top: 30px;

  border-top: 1px solid var(--border-soft);
}

.section-title {
  margin-bottom: 8px;

  font-size: 24px;
  letter-spacing: -0.035em;
}

.section-description {
  color: var(--color-text-muted);
  font-size: 14px;
}

.fields {
  display: grid;

  grid-template-columns: repeat(2, minmax(0, 1fr));

  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

.field.full {
  grid-column: 1 / -1;
}


/* =========================================================
   LABELS
   ========================================================= */

label {
  color: var(--color-label);

  font-size: 13px;
  font-weight: 700;
}

label span {
  color: var(--color-text-faint);
  font-weight: 500;
}


/* =========================================================
   INPUTS
   ========================================================= */

input,
select,
textarea {
  width: 100%;

  padding: 13px 14px;

  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);

  outline: none;

  background: var(--surface-input);
  color: var(--color-text);

  font: inherit;
  font-size: 14px;

  transition:
    border-color 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
}

input::placeholder,
textarea::placeholder {
  color: #59637d;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(130, 110, 255, 0.65);

  background: var(--surface-input-focus);

  box-shadow:
    0 0 0 3px var(--glow-primary-soft);
}

textarea {
  min-height: 130px;
  resize: vertical;
}

select {
  appearance: none;
  -webkit-appearance: none;

  cursor: pointer;
}


/* =========================================================
   REQUIREMENTS
   ========================================================= */

.requirements {
  display: grid;
  gap: 10px;
}

.requirement {
  display: flex;
  align-items: flex-start;

  gap: 10px;

  color: var(--color-text-secondary);

  font-size: 14px;
}

.requirement::before {
  content: "✓";

  flex: 0 0 auto;

  color: var(--color-success);

  font-weight: 800;
}


/* =========================================================
   AGREEMENT
   ========================================================= */

.agreement {
  padding: 18px;

  background: var(--surface-agreement);

  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);

  color: var(--color-text-secondary);

  font-size: 13px;
}

.agreement strong {
  color: var(--color-text);
}


/* =========================================================
   CHECKBOXES
   ========================================================= */

.checkbox {
  display: flex;
  align-items: flex-start;

  gap: 11px;

  cursor: pointer;

  color: var(--color-checkbox);

  font-size: 13px;
}

.checkbox input {
  width: 18px;
  height: 18px;

  flex: 0 0 auto;

  margin-top: 2px;

  accent-color: var(--color-primary);
}


/* =========================================================
   SUBMIT
   ========================================================= */

.submit-area {
  display: grid;
  gap: 14px;

  margin-top: 10px;
}

button {
  width: 100%;

  padding: 15px 20px;

  border: 0;
  border-radius: var(--radius-md);

  background: var(--gradient-primary);
  color: var(--color-white);

  font: inherit;
  font-size: 15px;
  font-weight: 800;

  cursor: pointer;

  transition:
    transform 0.2s ease,
    filter 0.2s ease,
    box-shadow 0.2s ease;
}

button:hover {
  transform: translateY(-2px);

  filter: brightness(1.08);

  box-shadow: var(--shadow-button);
}

button:active {
  transform: translateY(0);
}

button:focus-visible {
  outline: 3px solid rgba(140, 125, 255, 0.4);
  outline-offset: 3px;
}


/* =========================================================
   FINE PRINT
   ========================================================= */

.fine-print {
  color: var(--color-text-dark);

  text-align: center;

  font-size: 12px;
}


/* =========================================================
   FOOTER
   ========================================================= */

footer {
  padding: 28px 0;

  border-top: 1px solid var(--border-soft);

  color: var(--color-text-dark);

  font-size: 12px;

  text-align: center;
}


/* =========================================================
   UNDER DEVELOPMENT PAGE
   ========================================================= */

.page {
  width: min(100% - 32px, 1000px);

  min-height: 100vh;

  margin: 0 auto;
  padding: 40px 0;

  display: flex;
  flex-direction: column;

  justify-content: center;
  align-items: center;

  text-align: center;
}

.logo {
  width: 90px;
  height: 90px;

  object-fit: contain;

  border-radius: var(--radius-xl);

  margin-bottom: 30px;

  filter: drop-shadow(var(--shadow-logo));
}

.badge {
  display: inline-flex;

  align-items: center;
  justify-content: center;

  padding: 8px 15px;

  border: 1px solid var(--border-primary);

  background: var(--surface-accent);

  border-radius: var(--radius-pill);

  color: var(--color-primary-light);

  font-size: 12px;
  font-weight: 700;

  letter-spacing: 0.08em;
  text-transform: uppercase;

  margin-bottom: 22px;
}

.page h1 {
  font-size: clamp(42px, 8vw, 78px);

  line-height: 1;

  letter-spacing: -0.06em;

  margin-bottom: 22px;
}

.description {
  max-width: 650px;

  color: var(--color-text-secondary);

  font-size: 17px;
  line-height: 1.7;
}

.status-card {
  width: min(100%, 650px);

  margin-top: 38px;

  padding: 24px;

  background: var(--surface-card-soft);

  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);

  box-shadow: var(--shadow-card);
}

.status {
  display: flex;

  align-items: center;
  justify-content: center;

  gap: 10px;

  color: var(--color-status-text);

  font-size: 14px;
  font-weight: 600;
}

.status-dot {
  width: 9px;
  height: 9px;

  border-radius: 50%;

  background: var(--color-status);

  box-shadow:
    0 0 14px var(--glow-primary);
}

.status-card p {
  margin-top: 12px;

  color: var(--color-text-faint);

  font-size: 13px;
}

.page footer {
  margin-top: 50px;

  color: var(--color-text-dark);

  font-size: 12px;
}


/* =========================================================
   UNDER DEVELOPMENT MOBILE
   ========================================================= */

@media (max-width: 600px) {
  .page {
    width: min(100% - 24px, 1000px);

    padding: 30px 0;
  }

  .logo {
    width: 76px;
    height: 76px;

    margin-bottom: 25px;
  }

  .page h1 {
    font-size: 46px;
  }

  .description {
    font-size: 15px;
  }

  .status-card {
    padding: 20px 16px;
  }
}


/* =========================================================
   404 ERROR PAGE
   ========================================================= */

.error-page h1 {
  font-size: clamp(90px, 18vw, 180px);

  line-height: 0.9;

  letter-spacing: -0.08em;

  margin-bottom: 20px;
}

.error-title {
  font-size: clamp(24px, 4vw, 34px);

  line-height: 1.2;

  letter-spacing: -0.04em;

  margin-bottom: 14px;

  color: var(--color-text);
}

.error-page .description {
  max-width: 600px;
}

.error-actions {
  margin-top: 32px;
}

.error-button {
  display: inline-flex;

  align-items: center;
  justify-content: center;

  min-width: 150px;

  padding: 13px 22px;

  border-radius: var(--radius-md);

  background: var(--gradient-primary);
  color: var(--color-white);

  font-size: 14px;
  font-weight: 800;

  transition:
    transform 0.2s ease,
    filter 0.2s ease,
    box-shadow 0.2s ease;
}

.error-button:hover {
  transform: translateY(-2px);

  filter: brightness(1.08);

  box-shadow: var(--shadow-button);
}

.error-button:active {
  transform: translateY(0);
}


/* =========================================================
   404 MOBILE
   ========================================================= */

@media (max-width: 600px) {
  .error-page h1 {
    font-size: 110px;
  }

  .error-title {
    font-size: 25px;
  }

  .error-page .description {
    font-size: 14px;
  }

  .error-button {
    width: 100%;
  }

  .error-actions {
    width: 100%;
    max-width: 280px;
  }
}


/* =========================================================
   VIPER THE GODDESS
   ========================================================= */

.viper-hero {
  min-height: 760px;

  display: flex;
  align-items: center;

  text-align: center;

  background:
    radial-gradient(
      circle at 50% 20%,
      rgba(120, 80, 220, 0.18),
      transparent 38%
    ),
    radial-gradient(
      circle at 20% 80%,
      rgba(40, 80, 190, 0.10),
      transparent 35%
    );
}

.viper-hero-content {
  display: flex;

  flex-direction: column;

  align-items: center;
}

.viper-badge {
  display: inline-flex;

  align-items: center;
  justify-content: center;

  padding: 8px 15px;

  border: 1px solid var(--border-primary);

  background: var(--surface-accent);

  border-radius: var(--radius-pill);

  color: var(--color-primary-light);

  font-size: 11px;
  font-weight: 700;

  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.viper-hero h1 {
  max-width: 950px;

  margin-top: 25px;

  font-size: clamp(55px, 10vw, 110px);

  line-height: 0.95;

  letter-spacing: -0.065em;
}

.viper-title {
  margin-top: 22px;

  color: var(--color-primary-pale);

  font-size: clamp(18px, 3vw, 25px);

  font-weight: 700;

  letter-spacing: -0.02em;
}

.viper-intro {
  max-width: 720px;

  margin-top: 18px;

  color: var(--color-text-soft);

  font-size: 16px;

  line-height: 1.8;
}

.viper-actions {
  display: flex;

  justify-content: center;

  gap: 12px;

  margin-top: 32px;
}

.viper-button {
  display: inline-flex;

  align-items: center;
  justify-content: center;

  min-height: 48px;

  padding: 13px 22px;

  border-radius: var(--radius-md);

  font-size: 14px;
  font-weight: 800;

  transition:
    transform 0.2s ease,
    filter 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.viper-button.primary {
  color: var(--color-white);

  background: var(--gradient-primary);
}

.viper-button.secondary {
  color: var(--color-primary-pale);

  background: var(--surface-accent);

  border: 1px solid var(--border-primary-strong);
}

.viper-button:hover {
  transform: translateY(-2px);

  filter: brightness(1.08);

  box-shadow: var(--shadow-button-soft);
}

.viper-section {
  padding: 90px 0;
}

.viper-card {
  padding: clamp(25px, 5vw, 48px);

  background: var(--surface-card-soft);

  border: 1px solid var(--border-light);
  border-radius: var(--radius-xxl);

  box-shadow: var(--shadow-card-soft);
}

.viper-section-label {
  margin-bottom: 12px;

  color: #9d91ff;

  font-size: 11px;
  font-weight: 800;

  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.viper-card h2 {
  margin-bottom: 22px;

  color: var(--color-text);

  font-size: clamp(30px, 5vw, 48px);

  line-height: 1.08;

  letter-spacing: -0.045em;
}

.viper-card p {
  max-width: 760px;

  margin-top: 15px;

  color: var(--color-text-secondary);

  font-size: 15px;

  line-height: 1.8;
}

.viper-quote {
  margin-top: 30px;

  padding: 24px;

  border-left: 3px solid var(--color-primary-soft);

  background: rgba(100, 80, 200, 0.07);

  color: var(--color-quote);

  font-size: 17px;
  font-weight: 600;
  font-style: italic;

  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}


/* =========================================================
   VIPER INFO GRID
   ========================================================= */

.viper-grid {
  display: grid;

  grid-template-columns: repeat(3, minmax(0, 1fr));

  gap: 18px;
}

.viper-info-card {
  padding: 30px;

  background: var(--surface-card-light);

  border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl);

  transition:
    transform 0.2s ease,
    border-color 0.2s ease;
}

.viper-info-card:hover {
  transform: translateY(-4px);

  border-color: var(--border-primary-strong);
}

.viper-icon {
  width: 42px;
  height: 42px;

  display: flex;

  align-items: center;
  justify-content: center;

  margin-bottom: 20px;

  border-radius: 12px;

  background: rgba(110, 90, 220, 0.12);

  color: var(--color-primary-soft);

  font-size: 19px;
}

.viper-info-card h3 {
  margin-bottom: 10px;

  color: var(--color-text);

  font-size: 20px;

  letter-spacing: -0.03em;
}

.viper-info-card p {
  color: var(--color-text-muted);

  font-size: 14px;

  line-height: 1.7;
}


/* =========================================================
   VIPER TAGS
   ========================================================= */

.viper-tags {
  display: flex;

  flex-wrap: wrap;

  gap: 9px;

  margin-top: 28px;
}

.viper-tags span {
  padding: 8px 12px;

  border: 1px solid var(--border-primary-soft);

  background: var(--surface-accent-card);

  border-radius: var(--radius-pill);

  color: var(--color-tag);

  font-size: 12px;
  font-weight: 600;
}


/* =========================================================
   LORE
   ========================================================= */

.lore-card {
  position: relative;

  overflow: hidden;
}

.lore-card::after {
  content: "";

  position: absolute;

  width: 280px;
  height: 280px;

  right: -100px;
  bottom: -150px;

  background:
    radial-gradient(
      circle,
      rgba(100, 80, 220, 0.13),
      transparent 70%
    );

  pointer-events: none;
}

.lore-warning {
  display: flex;

  align-items: center;

  gap: 14px;

  margin-top: 30px;

  padding: 16px 18px;

  border: 1px solid var(--border-primary-faint);

  background: var(--surface-accent-soft);

  border-radius: 15px;
}

.lore-warning span {
  color: var(--color-primary-soft);

  font-size: 20px;
}

.lore-warning p {
  margin: 0;

  color: var(--color-text-muted);

  font-size: 13px;
}


/* =========================================================
   VTUBER SECTION
   ========================================================= */

.viper-vtuber-card {
  display: flex;

  align-items: center;
  justify-content: space-between;

  gap: 40px;

  padding: clamp(25px, 5vw, 48px);

  background:
    radial-gradient(
      circle at 90% 20%,
      rgba(100, 80, 220, 0.14),
      transparent 40%
    ),
    var(--surface-card);

  border: 1px solid var(--border-primary-faint);
  border-radius: var(--radius-xxl);

  box-shadow: var(--shadow-card-soft);
}

.viper-vtuber-card h2 {
  margin-bottom: 15px;

  color: var(--color-text);

  font-size: clamp(30px, 5vw, 46px);

  line-height: 1.05;

  letter-spacing: -0.045em;
}

.viper-vtuber-card p {
  max-width: 680px;

  margin-top: 10px;

  color: var(--color-text-soft);

  font-size: 14px;

  line-height: 1.75;
}

.viper-vtuber-card .viper-button {
  flex: 0 0 auto;
}


/* =========================================================
   FINAL SECTION
   ========================================================= */

.viper-final {
  padding: 100px 0;

  text-align: center;

  background:
    radial-gradient(
      circle at 50% 50%,
      rgba(90, 70, 190, 0.12),
      transparent 55%
    );
}

.viper-final-content {
  display: flex;

  flex-direction: column;

  align-items: center;
}

.viper-final h2 {
  margin-top: 22px;

  font-size: clamp(35px, 7vw, 65px);

  line-height: 1;

  letter-spacing: -0.055em;
}

.viper-final p {
  margin-top: 18px;

  color: var(--color-text-muted);

  font-size: 15px;
}


/* =========================================================
   VIPER MOBILE
   ========================================================= */

@media (max-width: 750px) {
  .viper-hero {
    min-height: 650px;
  }

  .viper-actions {
    width: 100%;

    flex-direction: column;

    max-width: 320px;
  }

  .viper-button {
    width: 100%;
  }

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

  .viper-vtuber-card {
    flex-direction: column;

    align-items: flex-start;
  }

  .viper-vtuber-card .viper-button {
    width: 100%;
  }
}

@media (max-width: 500px) {
  .viper-hero {
    min-height: 600px;
  }

  .viper-hero h1 {
    font-size: 56px;
  }

  .viper-intro {
    font-size: 14px;
  }

  .viper-section {
    padding: 60px 0;
  }

  .viper-card {
    padding: 23px 18px;

    border-radius: 20px;
  }

  .viper-info-card {
    padding: 23px 18px;
  }

  .viper-quote {
    font-size: 15px;
  }

  .viper-final {
    padding: 75px 0;
  }
}


/* =========================================================
   ARCLEN GLOBAL HEADER
   ========================================================= */

.site-header {
  position: sticky;

  top: 0;
  z-index: 1000;

  width: 100%;

  background: var(--surface-header);

  border-bottom: 1px solid var(--border-light);

  backdrop-filter: var(--blur-header);
  -webkit-backdrop-filter: var(--blur-header);
}

.site-header-sticky {
  position: sticky;

  top: 0;
}

.site-nav {
  width: min(100% - 32px, 1100px);

  min-height: 72px;

  margin: 0 auto;

  display: flex;

  align-items: center;

  gap: 28px;
}

.site-brand {
  display: flex;

  align-items: center;

  gap: 11px;

  color: var(--color-text);

  font-size: 15px;
  font-weight: 800;

  letter-spacing: -0.03em;

  white-space: nowrap;
}

.site-brand img {
  width: 38px;
  height: 38px;

  object-fit: contain;

  border-radius: var(--radius-sm);
}

.site-links {
  display: flex;

  align-items: center;

  gap: 5px;

  margin-left: auto;
}

.site-link {
  padding: 9px 12px;

  border-radius: var(--radius-sm);

  color: var(--color-text-soft);

  font-size: 13px;
  font-weight: 600;

  transition:
    color 0.2s ease,
    background 0.2s ease;
}

.site-link:hover {
  color: var(--color-white);

  background: var(--surface-overlay);
}

.site-link.active {
  color: var(--color-white);

  background: var(--surface-accent-strong);
}


/* =========================================================
   MOBILE HEADER BUTTON
   ========================================================= */

.mobile-menu-button {
  display: none;

  width: 42px;
  height: 42px;

  margin-left: auto;

  padding: 9px;

  border: 1px solid var(--border-light);
  border-radius: 12px;

  background: var(--surface-overlay);

  cursor: pointer;

  flex-direction: column;

  justify-content: center;
  align-items: center;

  gap: 5px;
}

.mobile-menu-button span {
  display: block;

  width: 19px;
  height: 2px;

  border-radius: 2px;

  background: var(--color-label);

  transition:
    transform 0.2s ease,
    opacity 0.2s ease;
}

.mobile-menu-button-open span:nth-child(1) {
  transform:
    translateY(7px)
    rotate(45deg);
}

.mobile-menu-button-open span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-button-open span:nth-child(3) {
  transform:
    translateY(-7px)
    rotate(-45deg);
}


/* =========================================================
   MOBILE MENU
   ========================================================= */

.mobile-menu {
  display: none;

  width: min(100% - 24px, 1100px);

  margin: 0 auto;

  padding: 0 0 14px;
}

.mobile-menu-open {
  display: grid;

  gap: 5px;
}

.mobile-link {
  display: block;

  padding: 13px 14px;

  border-radius: 12px;

  color: var(--color-text-secondary);

  font-size: 14px;
  font-weight: 600;

  background: var(--surface-overlay-soft);

  transition:
    color 0.2s ease,
    background 0.2s ease;
}

.mobile-link:hover,
.mobile-link.active {
  color: var(--color-white);

  background: var(--surface-accent-strong);
}


/* =========================================================
   MOBILE HEADER
   ========================================================= */

@media (max-width: 750px) {
  .site-nav {
    min-height: 64px;

    width: min(100% - 24px, 1100px);
  }

  .site-brand {
    font-size: 14px;
  }

  .site-brand img {
    width: 34px;
    height: 34px;
  }

  .site-links {
    display: none;
  }

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


/* =========================================================
   HOMEPAGE
   IMPORTANT:
   Homepage HTML should use:
   <div class="page homepage">
   ========================================================= */

.homepage {
  width: min(100% - 32px, 1100px);

  min-height: auto;

  margin: 0 auto;

  padding: 0 0 90px;

  display: block;

  text-align: initial;
}


/* =========================================================
   HOMEPAGE HERO
   ========================================================= */

.homepage > .hero {
  width: 100%;

  min-height: calc(100vh - 72px);

  padding: 100px 0 90px;

  display: flex;

  flex-direction: column;

  align-items: center;
  justify-content: center;

  text-align: center;
}

.homepage > .hero .logo {
  width: 96px;
  height: 96px;

  margin-bottom: 28px;
}

.homepage > .hero .badge {
  margin-bottom: 22px;
}

.homepage > .hero h1 {
  max-width: 950px;

  margin-bottom: 22px;
}

.homepage > .hero .description {
  max-width: 720px;
}


/* =========================================================
   HOMEPAGE BUTTONS
   ========================================================= */

.hero-actions {
  display: flex;

  align-items: center;
  justify-content: center;

  flex-wrap: wrap;

  gap: 12px;

  margin-top: 32px;
}

.button {
  display: inline-flex;

  align-items: center;
  justify-content: center;

  gap: 9px;

  min-height: 48px;

  padding: 13px 21px;

  border-radius: var(--radius-md);

  font-size: 14px;
  font-weight: 800;

  transition:
    transform 0.2s ease,
    filter 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

.button.primary {
  color: var(--color-white);

  background: var(--gradient-primary);

  box-shadow:
    0 10px 30px rgba(80, 90, 220, 0.16);
}

.button.secondary {
  color: var(--color-primary-pale);

  background: var(--surface-accent);

  border: 1px solid var(--border-primary-strong);
}

.button:hover {
  transform: translateY(-2px);

  filter: brightness(1.08);

  box-shadow: var(--shadow-button);
}

.button:active {
  transform: translateY(0);
}


/* =========================================================
   CONTENT SECTIONS
   ========================================================= */

.content-section {
  width: 100%;

  padding: 90px 0;
}

.section-heading {
  max-width: 720px;

  margin: 0 auto 38px;

  text-align: center;
}

.section-heading .badge {
  margin-bottom: 18px;
}

.section-heading h2 {
  margin-bottom: 15px;

  font-size: clamp(34px, 5vw, 52px);

  line-height: 1.05;

  letter-spacing: -0.045em;
}

.section-heading p {
  color: var(--color-text-secondary);

  font-size: 15px;

  line-height: 1.8;
}


/* =========================================================
   HOMEPAGE CARDS
   ========================================================= */

.card-grid {
  width: 100%;

  display: grid;

  grid-template-columns: repeat(2, minmax(0, 1fr));

  gap: 18px;
}

.card-grid .status-card {
  width: 100%;

  margin-top: 0;

  height: 100%;
}

.feature-card {
  padding: 30px;

  text-align: left;

  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);

  border-color: var(--border-primary-strong);

  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.28);
}

.feature-card .icon {
  width: 46px;
  height: 46px;

  display: flex;

  align-items: center;
  justify-content: center;

  margin-bottom: 20px;

  border-radius: 13px;

  background: var(--surface-accent-strong);

  border: 1px solid var(--border-primary-faint);

  color: var(--color-primary-light);

  font-size: 18px;
}

.feature-card h3 {
  margin-bottom: 9px;

  color: var(--color-text);

  font-size: 20px;

  letter-spacing: -0.03em;
}

.feature-card p {
  color: var(--color-text-muted);

  font-size: 14px;

  line-height: 1.75;
}


/* =========================================================
   HOMEPAGE STATUS CARDS
   ========================================================= */

.homepage > .status-card {
  width: 100%;

  margin-top: 18px;

  text-align: left;
}

.homepage > .status-card:first-of-type {
  margin-top: 0;
}

.homepage > .status-card h2 {
  margin-top: 20px;
  margin-bottom: 14px;

  font-size: clamp(28px, 4vw, 42px);

  line-height: 1.08;

  letter-spacing: -0.045em;
}

.homepage > .status-card p {
  max-width: 820px;

  margin-top: 12px;

  color: var(--color-text-secondary);

  font-size: 15px;

  line-height: 1.8;
}


/* =========================================================
   TEXT LINK
   ========================================================= */

.text-link {
  display: inline-flex;

  align-items: center;

  gap: 8px;

  margin-top: 20px;

  color: var(--color-primary-light);

  font-size: 14px;
  font-weight: 700;

  transition:
    gap 0.2s ease,
    color 0.2s ease;
}

.text-link:hover {
  gap: 11px;

  color: var(--color-white);
}


/* =========================================================
   VISION
   ========================================================= */

.vision-card {
  margin-top: 80px !important;

  padding: clamp(28px, 6vw, 55px) !important;

  text-align: center !important;

  background:
    radial-gradient(
      circle at 50% 0%,
      rgba(100, 80, 220, 0.12),
      transparent 55%
    ),
    var(--surface-card);
}

.vision-card .status {
  justify-content: center;
}

.vision-card h2 {
  max-width: 800px;

  margin: 20px auto 15px !important;
}

.vision-card p {
  margin-left: auto;
  margin-right: auto;

  max-width: 720px;
}


/* =========================================================
   FOUNDING
   ========================================================= */

.founding-card {
  margin-top: 80px !important;
}

.founding-content {
  display: grid;

  grid-template-columns: repeat(3, minmax(0, 1fr));

  gap: 18px;

  margin: 30px 0;
}

.founding-content > div {
  padding: 22px;

  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);

  background: var(--surface-overlay-soft);

  text-align: center;
}

.stat-number {
  display: block;

  color: var(--color-text);

  font-size: clamp(24px, 4vw, 34px);

  font-weight: 800;

  letter-spacing: -0.04em;
}

.stat-label {
  display: block;

  margin-top: 4px;

  color: var(--color-text-muted);

  font-size: 12px;

  text-transform: uppercase;

  letter-spacing: 0.08em;
}


/* =========================================================
   FINAL CTA
   ========================================================= */

.cta {
  width: 100%;

  margin-top: 100px;

  padding:
    clamp(65px, 10vw, 110px)
    20px;

  text-align: center;

  background:
    radial-gradient(
      circle at 50% 50%,
      rgba(90, 70, 190, 0.14),
      transparent 58%
    );

  border-radius: var(--radius-xxl);
}

.cta .badge {
  margin-bottom: 20px;
}

.cta h2 {
  max-width: 850px;

  margin: 0 auto;

  font-size: clamp(40px, 7vw, 68px);

  line-height: 1;

  letter-spacing: -0.055em;
}

.cta p {
  max-width: 650px;

  margin: 20px auto 0;

  color: var(--color-text-muted);

  font-size: 15px;

  line-height: 1.8;
}

.cta .hero-actions {
  margin-top: 30px;
}


/* =========================================================
   FOOTER
   ========================================================= */

#site-footer {
  width: 100%;

  margin-top: 0;
}


/* =========================================================
   HOMEPAGE MOBILE
   ========================================================= */

@media (max-width: 750px) {
  .homepage {
    width: min(100% - 24px, 1100px);

    padding-bottom: 60px;
  }

  .homepage > .hero {
    min-height: calc(100vh - 64px);

    padding: 70px 0 65px;
  }

  .homepage > .hero .logo {
    width: 78px;
    height: 78px;

    margin-bottom: 24px;
  }

  .hero-actions {
    width: 100%;

    flex-direction: column;

    max-width: 320px;
  }

  .button {
    width: 100%;
  }

  .content-section {
    padding: 65px 0;
  }

  .section-heading {
    margin-bottom: 28px;
  }

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

  .feature-card {
    padding: 24px 20px;
  }

  .vision-card {
    margin-top: 60px !important;
  }

  .founding-card {
    margin-top: 60px !important;
  }

  .founding-content {
    grid-template-columns: 1fr;

    gap: 10px;
  }

  .cta {
    margin-top: 70px;

    padding: 70px 16px;
  }
}


/* =========================================================
   SMALL PHONES
   ========================================================= */

@media (max-width: 500px) {
  .homepage {
    width: min(100% - 20px, 1100px);
  }

  .homepage > .hero {
    padding-top: 55px;
  }

  .homepage > .hero h1 {
    font-size: 46px;
  }

  .homepage > .hero .description {
    font-size: 14px;
  }

  .homepage > .status-card {
    padding: 21px 17px;
  }

  .homepage > .status-card h2 {
    font-size: 29px;
  }

  .section-heading h2 {
    font-size: 34px;
  }

  .cta h2 {
    font-size: 42px;
  }
}


/* =========================================================
   FORM MOBILE
   ========================================================= */

@media (max-width: 700px) {
  .container {
    width: min(100% - 24px, 1100px);
  }

  .nav {
    min-height: 62px;
  }

  .brand span {
    font-size: 14px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .back {
    font-size: 12px;
  }

  .hero {
    padding: 65px 0 40px;
  }

  .hero p {
    font-size: 15px;
  }

  .notice {
    font-size: 13px;

    margin-top: 25px;
  }

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

  .field.full {
    grid-column: auto;
  }

  .card {
    padding: 22px 18px;

    border-radius: 20px;
  }

  .section-title {
    font-size: 21px;
  }

  .section-description {
    font-size: 13px;
  }
}

@media (max-width: 420px) {
  .brand span {
    display: none;
  }

  .hero {
    padding-top: 50px;
  }

  h1 {
    font-size: 42px;
  }

  .eyebrow {
    font-size: 10px;
  }

  .card {
    padding: 18px 14px;
  }

  input,
  select,
  textarea {
    font-size: 16px;
  }
}