/* ── Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,400&display=swap');

/* ─────────────────────────────────────────────
   Design Tokens
───────────────────────────────────────────── */
:root {
  /* ── Page backgrounds ── */
  --navy:          #F4F7FB;      /* page background (light blue-white) */
  --navy-deep:     #0F1F3D;      /* footer & dark accents — stays dark */
  --navy-card:     #FFFFFF;      /* panel / card background */

  /* ── Borders ── */
  --navy-border:   rgba(15,31,61,0.10);

  /* ── Semantic helpers for inline overrides ── */
  --input-bg:      #EEF2F8;      /* form inputs & textareas */
  --subtle-bg:     #F1F5FB;      /* subtle inner sections */
  --header-bg:     rgba(244,247,251,0.97); /* sticky header / nav */

  /* ── Heading text (replaces white-on-dark text) ── */
  --heading:       #0F1F3D;

  /* ── Brand ── */
  --sky:           #2563EB;      /* primary blue — richer on white */
  --sky-bright:    #3B82F6;
  --sky-dim:       rgba(37,99,235,0.07);
  --sky-glow:      rgba(37,99,235,0.15);

  /* ── Accent ── */
  --gold:          #D97706;      /* amber — legible on light bg */
  --green:         #059669;      /* emerald — legible on light bg */

  /* ── Text ── */
  --white:         #FFFFFF;      /* stays white for button text etc. */
  --text-dim:      #374151;      /* primary body text */
  --text-muted:    #6B7280;      /* secondary / placeholder text */

  /* ── Radii ── */
  --r:             14px;
  --r-lg:          22px;

  /* ── Shadows ── */
  --shadow:        0 1px 3px rgba(0,0,0,0.07), 0 0 0 1px rgba(15,31,61,0.06);
  --shadow-md:     0 4px 16px rgba(0,0,0,0.10);

  /* ── Typography ── */
  --font:          'DM Sans', system-ui, -apple-system, sans-serif;
  --font-heading:  'Sora', system-ui, -apple-system, sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--text-dim);
  background: var(--navy);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─────────────────────────────────────────────
   Layout
───────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ─────────────────────────────────────────────
   Header
───────────────────────────────────────────── */
.header {
  background: var(--header-bg);
  border-bottom: 1px solid var(--navy-border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--navy-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--heading);
  text-decoration: none;
  letter-spacing: -0.4px;
}

.logo span { color: var(--sky); }

.header__tagline {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

@media (max-width: 600px) {
  .header__tagline { display: none; }
}

/* ─────────────────────────────────────────────
   Main
───────────────────────────────────────────── */
.main {
  flex: 1;
  padding: 2rem 0 3rem;
}

/* ─────────────────────────────────────────────
   Page Intro
───────────────────────────────────────────── */
.page-intro {
  margin-bottom: 1.75rem;
}

.page-intro h1 {
  font-family: var(--font-heading);
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--heading);
  letter-spacing: -0.5px;
  margin-bottom: 0.4rem;
}

.page-intro p,
.page-intro__desc {
  color: var(--text-dim);
  font-size: 0.925rem;
  max-width: 560px;
  line-height: 1.65;
}

/* ─────────────────────────────────────────────
   Workspace (two columns)
───────────────────────────────────────────── */
.workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 1023px) {
  .workspace { grid-template-columns: 1fr; }
}

/* ─────────────────────────────────────────────
   Panel
───────────────────────────────────────────── */
.panel {
  background: var(--navy-card);
  border: 1px solid var(--navy-border);
  border-radius: var(--r-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.panel--result {
  min-height: 480px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 80px;
}

/* ─────────────────────────────────────────────
   Forms
───────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1.1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 500px) {
  .form-row { grid-template-columns: 1fr; }
}

label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-dim);
}

.required { color: #ef4444; margin-left: 2px; }
.optional  { font-weight: 400; color: var(--text-muted); font-size: 0.8rem; }

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="date"],
input[type="time"],
select,
textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 0.9rem;
  font-family: var(--font);
  color: var(--heading);
  background: var(--input-bg);
  border: 1px solid var(--navy-border);
  border-radius: var(--r);
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
  -webkit-appearance: none;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
input[type="date"]:focus,
input[type="time"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--sky);
  box-shadow: 0 0 0 3px var(--sky-dim);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

input.invalid,
select.invalid,
textarea.invalid {
  border-color: #ef4444;
}

select option {
  background: var(--navy-card);
  color: var(--heading);
}

textarea { resize: vertical; line-height: 1.55; }

.hint {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ─────────────────────────────────────────────
   Buttons
───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s, transform 0.1s, box-shadow 0.15s;
  text-decoration: none;
}

.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn--primary {
  background: var(--sky);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(61,142,232,0.25);
}

.btn--primary:hover:not(:disabled) {
  background: var(--sky-bright);
  box-shadow: 0 4px 20px rgba(61,142,232,0.4);
}

.btn--secondary {
  background: var(--sky-dim);
  color: var(--sky-bright);
  border: 1px solid rgba(91,163,245,0.25);
}

.btn--secondary:hover { background: rgba(61,142,232,0.16); }

.btn--ghost {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--navy-border);
  border-radius: 50px;
}

.btn--ghost:hover {
  background: var(--sky-dim);
  color: var(--sky);
  border-color: var(--sky);
}

.btn--full  { width: 100%; margin-top: 0.5rem; padding: 0.8rem; font-size: 1rem; }
.btn--sm    { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.btn--copied { background: var(--green) !important; color: white !important; }

/* ─────────────────────────────────────────────
   Download button group
───────────────────────────────────────────── */
.download-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn--download {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.9rem;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font);
  background: var(--navy-card);
  color: var(--text-dim);
  border: 1px solid var(--navy-border);
  border-radius: var(--r);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.1s;
}

.btn--download:hover {
  background: var(--sky-dim);
  border-color: var(--sky);
  color: var(--sky-bright);
}

.btn--download:active { transform: scale(0.97); }

.btn--download.btn--social {
  border-color: rgba(245,200,66,0.28);
  color: var(--gold);
  background: rgba(245,200,66,0.07);
}

.btn--download.btn--social:hover { background: rgba(245,200,66,0.14); }

.dl-icon { font-size: 1rem; line-height: 1; }

/* ─────────────────────────────────────────────
   Logo upload
───────────────────────────────────────────── */
.logo-upload-group { margin-bottom: 1.25rem; }

.logo-upload-area {
  border: 2px dashed var(--navy-border);
  border-radius: var(--r);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  overflow: hidden;
}

.logo-upload-area:hover,
.logo-upload-area.drag-over {
  border-color: var(--sky);
  background: var(--sky-dim);
}

.logo-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  padding: 1.25rem;
  text-align: center;
  color: var(--text-muted);
}

.logo-placeholder__icon { font-size: 1.75rem; opacity: 0.45; }
.logo-placeholder p     { font-size: 0.85rem; font-weight: 500; color: var(--text-dim); margin: 0; }
.logo-placeholder span  { font-size: 0.75rem; }

.logo-preview {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem;
  background: var(--subtle-bg);
  min-height: 72px;
}

.logo-preview img {
  max-height: 60px;
  max-width: 180px;
  object-fit: contain;
}

.logo-remove {
  position: absolute;
  top: 6px;
  right: 8px;
  background: var(--navy-card);
  border: 1px solid var(--navy-border);
  box-shadow: var(--shadow);
  border-radius: 50%;
  width: 22px;
  height: 22px;
  font-size: 0.65rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: background 0.1s, color 0.1s, border-color 0.1s;
}

.logo-remove:hover {
  background: rgba(239,68,68,0.15);
  color: #ef4444;
  border-color: #ef4444;
}

/* ─────────────────────────────────────────────
   Result Panel
───────────────────────────────────────────── */
.result-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-muted);
  gap: 0.75rem;
  padding: 2rem;
}

.result-empty__icon { font-size: 2.75rem; opacity: 0.35; }
.result-empty p     { font-size: 0.875rem; max-width: 260px; line-height: 1.6; }

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

.result-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.result-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--heading);
}

.result-actions { display: flex; gap: 0.5rem; }

.result-body {
  flex: 1;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--text-dim);
  white-space: pre-wrap;
  background: var(--subtle-bg);
  border: 1px solid var(--navy-border);
  border-radius: var(--r);
  padding: 1rem 1.1rem;
  overflow-y: auto;
  max-height: 560px;
}

.result-footer {
  border-top: 1px solid var(--navy-border);
  padding-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.result-note { font-size: 0.78rem; color: var(--text-muted); }

.result-error {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  gap: 0.5rem;
  color: #ef4444;
  font-size: 0.9rem;
}

.error-detail { font-size: 0.78rem; color: var(--text-muted); }

/* ─────────────────────────────────────────────
   Tool Navigation Bar
───────────────────────────────────────────── */
.tool-nav {
  background: var(--header-bg);
  border-bottom: 1px solid var(--navy-border);
  position: sticky;
  top: 61px;
  z-index: 99;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.tool-nav__inner {
  display: flex;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.tool-nav__inner::-webkit-scrollbar { display: none; }

.tool-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
  flex-shrink: 0;
  font-family: var(--font);
  min-height: 44px;
  justify-content: center;
}

.tool-nav__item:hover {
  color: var(--sky);
  background: var(--sky-dim);
}

.tool-nav__item.active {
  color: var(--sky);
  border-bottom-color: var(--sky);
}

.tool-nav__icon {
  font-size: 1.05rem;
  line-height: 1;
}

/* ─────────────────────────────────────────────
   Footer
───────────────────────────────────────────── */
.footer {
  background: var(--navy-deep);  /* stays dark for contrast */
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 1.25rem 0;
  text-align: center;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
}

/* ─────────────────────────────────────────────
   Badges
───────────────────────────────────────────── */
.badge-sky {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--sky-dim);
  border: 1px solid rgba(61,142,232,0.25);
  color: var(--sky-bright);
}

.badge-gold {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(245,200,66,0.10);
  border: 1px solid rgba(245,200,66,0.25);
  color: var(--gold);
}

.badge-green {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(45,201,154,0.10);
  border: 1px solid rgba(45,201,154,0.25);
  color: var(--green);
}

/* ─────────────────────────────────────────────
   Animations
───────────────────────────────────────────── */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.btn__loader { animation: pulse 1.2s ease-in-out infinite; }

/* ─────────────────────────────────────────────
   Responsive
───────────────────────────────────────────── */
@media (max-width: 600px) {
  .tool-nav__item span:last-child { display: none; }
  .tool-nav__item { padding: 0.6rem 1rem; }
  .tool-nav__icon { font-size: 1.2rem; }

  .page-intro h1 { font-size: 1.35rem; }
  .btn--full { font-size: 0.95rem; }
  .main { padding: 1.25rem 0 2rem; }
}

@media (min-width: 600px) and (max-width: 1023px) {
  .workspace { grid-template-columns: 1fr; }
}

@media (min-width: 1024px) {
  .workspace { grid-template-columns: 1fr 1fr; }
}