/* ─────────────────────────────────────────
   evvoli — Warranty Activation
   warranty.css
───────────────────────────────────────── */

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

:root {
  --cyan:     #00D4FF;
  --magenta:  #E91E8C;
  --grad:     linear-gradient(90deg, #00D4FF, #7d1ee9);
  --grad-v:   linear-gradient(180deg, #00D4FF, #7d1ee9);
  --white:    #fff;
  --w70:      rgba(255,255,255,0.70);
  --w40:      rgba(255,255,255,0.40);
  --w20:      rgba(255,255,255,0.20);
  --w10:      rgba(255,255,255,0.08);
  --w06:      rgba(255,255,255,0.06);
  --bg:       #111111;
  --bg-dark:  #0c0c0c;
  --bg-card:  #171717;
  --border:   rgba(255,255,255,0.10);
  --error:    #ff4d6a;
  --success:  #00D4FF;
}

/* ── BASE ── */
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--white);
  font-family: 'Lato', -apple-system, sans-serif;
  font-weight: 300;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img  { display: block; max-width: 100%; }
a    { color: var(--cyan); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--white); }
ul   { list-style: none; }
::selection { background: var(--cyan); color: var(--bg-dark); }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track  { background: var(--bg-dark); }
::-webkit-scrollbar-thumb  { background: var(--w20); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--cyan); }

/* ── HEADER ── */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
  padding: 1.2rem 2.4rem;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(17,17,17,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-logo { width: 80px; }

.header-back {
  font-size: 0.62rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--w40); font-weight: 400;
  display: flex; align-items: center; gap: 0.5rem;
  transition: color 0.3s;
}
.header-back:hover { color: var(--white); }
.header-back svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 1.5; transition: transform 0.3s; }
.header-back:hover svg { transform: translateX(-3px); }

/* ── PAGE WRAPPER ── */
.page-wrapper {
  min-height: 100vh;
  padding-top: 80px;           /* clear fixed header */
  padding-bottom: 5rem;
  background: linear-gradient(160deg, var(--bg) 0%, var(--bg-dark) 100%);
}

/* ── HERO ── */
.page-hero {
  text-align: center;
  padding: clamp(3rem, 6vw, 5rem) 1.5rem 3rem;
}

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 0.8rem;
  margin-bottom: 1.6rem;
}
.hero-eyebrow img { width: 44px; }
.hero-eyebrow span {
  font-size: 0.6rem; letter-spacing: 0.35em; text-transform: uppercase;
  color: var(--w40); font-weight: 400;
}

.hero-title {
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  font-weight: 300; letter-spacing: -0.02em;
  color: var(--white); line-height: 1.15;
  margin-bottom: 0.8rem;
}

.grad-word {
  background: var(--grad);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 0.9rem; color: var(--w40); font-weight: 300;
  letter-spacing: 0.04em; max-width: 400px; margin: 0 auto;
}

/* ── GRAD DIVIDER ── */
.grad-divider {
  width: clamp(40px, 5vw, 64px); height: 1px;
  background: var(--grad);
  margin: 0 auto 2.4rem;
}

/* ── FORM CARD ── */
.form-card {
  max-width: 720px; margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── FORM SECTION LABEL ── */
.form-section {
  margin-bottom: 2.8rem;
}

.form-section-label {
  display: flex; align-items: center; gap: 1rem;
  margin-bottom: 1.8rem;
}
.form-section-label .section-line {
  flex: 1; height: 1px; background: var(--border);
}
.form-section-label span {
  font-size: 0.58rem; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--w40); font-weight: 400; white-space: nowrap;
}
.form-section-label .section-dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 6px rgba(0,212,255,0.6);
  flex-shrink: 0;
}

/* ── GRID ── */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-bottom: 1.2rem;
}
.form-row.single { grid-template-columns: 1fr; }
.form-row.triple { grid-template-columns: 1fr 1fr 1fr; }

/* ── FORM GROUP ── */
.form-group {
  display: flex; flex-direction: column; gap: 0.5rem;
  position: relative;
}

.form-label {
  font-size: 0.62rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--w40); font-weight: 400;
  transition: color 0.3s;
}
.form-group:focus-within .form-label { color: var(--cyan); }

.required-star { color: var(--cyan); margin-left: 0.2rem; }

/* ── INPUTS ── */
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--w06);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--white);
  font-family: 'Lato', sans-serif;
  font-size: 0.88rem;
  font-weight: 300;
  padding: 0.85rem 1rem;
  outline: none;
  transition: border-color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
  -webkit-appearance: none;
  appearance: none;
}

.form-input::placeholder { color: var(--w20); }

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--cyan);
  background: rgba(0,212,255,0.04);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.08);
}

.form-input.error,
.form-select.error { border-color: var(--error); }
.form-input.error:focus,
.form-select.error:focus { box-shadow: 0 0 0 3px rgba(255,77,106,0.1); }

/* ── SELECT ── */
.select-wrapper { position: relative; }
.select-wrapper .form-select { cursor: pointer; padding-right: 2.5rem; }
.select-arrow {
  position: absolute; right: 1rem; top: 50%; transform: translateY(-50%);
  pointer-events: none; width: 10px; height: 10px;
  border-right: 1px solid var(--w40); border-bottom: 1px solid var(--w40);
  transform: translateY(-70%) rotate(45deg);
  transition: border-color 0.3s;
}
.select-wrapper:focus-within .select-arrow { border-color: var(--cyan); }

.form-select option {
  background: var(--bg-card);
  color: var(--white);
}

/* ── ERROR MESSAGE ── */
.field-error {
  font-size: 0.6rem; letter-spacing: 0.1em; color: var(--error);
  font-weight: 400; opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
  min-height: 1rem;
}
.field-error.visible { opacity: 1; transform: translateY(0); }

/* ── PHONE INPUT ── */
.phone-wrapper { position: relative; }
.phone-prefix {
  position: absolute; left: 1rem; top: 50%; transform: translateY(-50%);
  font-size: 0.88rem; color: var(--w40); font-weight: 300;
  pointer-events: none;
}
.phone-wrapper .form-input { padding-left: 2.8rem; }

/* ── FILE UPLOAD ── */
.upload-zone {
  position: relative;
  border: 1px dashed var(--border);
  border-radius: 4px;
  background: var(--w06);
  padding: 2.4rem 1.5rem;
  display: flex; flex-direction: column; align-items: center; gap: 0.8rem;
  cursor: pointer;
  transition: border-color 0.3s, background 0.3s;
}
.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--cyan);
  background: rgba(0,212,255,0.04);
}
.upload-zone input[type="file"] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%;
}

.upload-icon svg {
  width: 28px; height: 28px; stroke: var(--w40); fill: none; stroke-width: 1.2;
  transition: stroke 0.3s;
}
.upload-zone:hover .upload-icon svg,
.upload-zone.dragover .upload-icon svg { stroke: var(--cyan); }

.upload-main {
  font-size: 0.82rem; color: var(--w70); font-weight: 300; text-align: center;
}
.upload-main strong { color: var(--cyan); font-weight: 400; }
.upload-sub {
  font-size: 0.62rem; letter-spacing: 0.12em; color: var(--w40);
  text-transform: uppercase;
}

.upload-preview {
  display: none;
  align-items: center; gap: 0.9rem;
  background: rgba(0,212,255,0.07);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 3px;
  padding: 0.7rem 1rem;
  margin-top: 0.8rem;
  width: 100%;
}
.upload-preview.visible { display: flex; }
.upload-preview svg { width: 16px; height: 16px; stroke: var(--cyan); fill: none; stroke-width: 1.5; flex-shrink: 0; }
.upload-filename { font-size: 0.78rem; color: var(--w70); font-weight: 300; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.upload-remove {
  background: none; border: none; cursor: pointer;
  color: var(--w40); font-size: 1rem; line-height: 1;
  transition: color 0.2s; padding: 0 0.2rem;
}
.upload-remove:hover { color: var(--error); }

/* ── SUBMIT BUTTON ── */
.submit-wrapper {
  margin-top: 2.8rem;
  display: flex; flex-direction: column; align-items: center; gap: 1rem;
}

.btn-submit {
  position: relative;
  width: 100%;
  padding: 1rem 2rem;
  border: none; border-radius: 3px;
  font-family: 'Lato', sans-serif;
  font-size: 0.72rem; font-weight: 400;
  letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--bg-dark);
  background: var(--grad);
  cursor: pointer;
  overflow: hidden;
  transition: opacity 0.3s, transform 0.2s;
}
.btn-submit::after {
  content: '';
  position: absolute; inset: 0;
  background: rgba(255,255,255,0);
  transition: background 0.3s;
}
.btn-submit:hover::after { background: rgba(255,255,255,0.08); }
.btn-submit:active { transform: scale(0.992); }
.btn-submit:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-submit .btn-text { position: relative; z-index: 1; display: flex; align-items: center; justify-content: center; gap: 0.6rem; }
.btn-submit .spinner {
  display: none;
  width: 14px; height: 14px;
  border: 2px solid rgba(0,0,0,0.3);
  border-top-color: rgba(0,0,0,0.8);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.btn-submit.loading .spinner { display: block; }
.btn-submit.loading .btn-label { opacity: 0.7; }
@keyframes spin { to { transform: rotate(360deg); } }

.submit-note {
  font-size: 0.6rem; letter-spacing: 0.15em; color: var(--w20);
  text-align: center;
}

/* ── SUCCESS STATE ── */
.success-panel {
  display: none;
  flex-direction: column; align-items: center;
  text-align: center; padding: 4rem 1.5rem;
  max-width: 500px; margin: 0 auto;
  gap: 1.4rem;
}
.success-panel.visible { display: flex; }

.success-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.25);
  display: flex; align-items: center; justify-content: center;
}
.success-icon svg { width: 28px; height: 28px; stroke: var(--cyan); fill: none; stroke-width: 1.5; }

.success-title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 300; color: var(--white);
}

.success-body { font-size: 0.88rem; color: var(--w40); font-weight: 300; line-height: 1.85; }

.success-ref {
  font-size: 0.62rem; letter-spacing: 0.2em; color: var(--cyan);
  border: 1px solid rgba(0,212,255,0.2);
  padding: 0.5rem 1.2rem; border-radius: 2px;
}

/* ── ENTRANCE ANIMATIONS ── */
.anim-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.85s cubic-bezier(0.16,1,0.3,1),
              transform 0.85s cubic-bezier(0.16,1,0.3,1);
}
.anim-in.visible { opacity: 1; transform: translateY(0); }

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
  .form-row.triple { grid-template-columns: 1fr; }
  .site-header { padding: 1rem 1.2rem; }
  .header-logo { width: 68px; }
}