/* ============================================================
   FINPLAN — style.css
   ============================================================ */

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

:root {
  --bg:        #0F172A;
  --card:      #1E293B;
  --card2:     #263348;
  --border:    #334155;
  --accent:    #60A5FA;
  --accent-hv: #3B82F6;
  --text:      #F8FAFC;
  --text-muted:#94A3B8;
  --success:   #16A34A;
  --danger:    #DC2626;
  --radius:    16px;
  --radius-sm: 10px;
  --shadow:    0 4px 24px rgba(0,0,0,.35);
  --shadow-sm: 0 2px 12px rgba(0,0,0,.25);
  --trans:     all .22s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Poppins', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }

/* ===== NAVBAR ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15,23,42,.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 62px;
  display: flex;
  align-items: center;
}

.nav-inner {
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -.3px;
  color: var(--text);
}

.logo-icon {
  width: 34px;
  height: 34px;
  background: var(--accent);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg);
}

.back-btn {
  display: none;
  align-items: center;
  gap: 6px;
  background: var(--card2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: 'Poppins', sans-serif;
  font-size: .82rem;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 99px;
  cursor: pointer;
  transition: var(--trans);
}
.back-btn:hover { color: var(--text); border-color: var(--accent); }
.back-btn.visible { display: flex; }

/* ===== MAIN WRAP ===== */
.main-wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

/* ===== PAGE TRANSITIONS ===== */
.page {
  display: none;
  animation: fadeSlideUp .38s cubic-bezier(.4,0,.2,1) forwards;
}
.page.active { display: block; }

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== HERO ===== */
.hero {
  text-align: center;
  padding: 48px 0 40px;
}

.hero-badge {
  display: inline-block;
  background: rgba(96,165,250,.12);
  border: 1px solid rgba(96,165,250,.3);
  color: var(--accent);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 99px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(1.9rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -.03em;
  margin-bottom: 16px;
}

.gradient-text {
  background: linear-gradient(135deg, #60A5FA, #818CF8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  color: var(--text-muted);
  font-size: .95rem;
  max-width: 520px;
  margin: 0 auto;
  font-weight: 400;
}

/* ===== CARDS GRID ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (max-width: 560px) {
  .cards-grid { grid-template-columns: 1fr; }
}

.menu-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: var(--trans);
  position: relative;
  overflow: hidden;
}

.menu-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(96,165,250,.04), transparent);
  opacity: 0;
  transition: opacity .22s;
}

.menu-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 8px 32px rgba(96,165,250,.15);
}
.menu-card:hover::before { opacity: 1; }
.menu-card:active { transform: translateY(-1px); }

.card-icon-wrap {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg,#1e40af22,#60a5fa22);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-icon {
  width: 26px;
  height: 26px;
  stroke: var(--accent);
}

.card-content { flex: 1; }
.card-title {
  font-size: .95rem;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -.01em;
}
.card-desc {
  font-size: .78rem;
  color: var(--text-muted);
  line-height: 1.5;
  font-weight: 400;
}

.card-arrow {
  flex-shrink: 0;
  align-self: center;
  color: var(--text-muted);
  transition: var(--trans);
}
.menu-card:hover .card-arrow { color: var(--accent); transform: translateX(4px); }

/* ===== CALC HEADER ===== */
.calc-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.calc-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg,#1e40af22,#60a5fa22);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.calc-icon-wrap svg { width: 28px; height: 28px; stroke: var(--accent); }

.calc-title {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -.03em;
}
.calc-sub { font-size: .82rem; color: var(--text-muted); font-weight: 400; }

/* ===== FORM CARD ===== */
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px 24px;
}

@media (max-width: 480px) {
  .form-card { padding: 20px 16px 20px; }
}

/* ===== FORM STEPS ===== */
.form-step {
  display: none;
}
.form-step.active {
  display: block;
  animation: stepIn .3s cubic-bezier(.4,0,.2,1) forwards;
}
.form-step + .form-step.active { margin-top: 20px; }

@keyframes stepIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== FIELD ===== */
.field-label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .07em;
  margin-bottom: 8px;
}

.field-hint {
  font-size: .77rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  font-weight: 400;
}

.input-wrap {
  display: flex;
  align-items: center;
  background: #0F172A;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--trans);
  overflow: hidden;
}
.input-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(96,165,250,.15);
}

.input-prefix, .input-suffix {
  padding: 0 14px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255,255,255,.04);
  border-right: 1px solid var(--border);
  height: 46px;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  white-space: nowrap;
}
.input-suffix { border-right: none; border-left: 1px solid var(--border); }

.field-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: 'Poppins', sans-serif;
  font-size: .92rem;
  font-weight: 500;
  padding: 0 16px;
  height: 46px;
  min-width: 0;
}

.field-input::placeholder { color: #475569; }
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; }

/* ===== ERROR ===== */
.error-msg {
  display: block;
  font-size: .75rem;
  color: var(--danger);
  font-weight: 500;
  margin-top: 6px;
  min-height: 18px;
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #0F172A;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Poppins', sans-serif;
  font-size: .88rem;
  font-weight: 700;
  padding: 12px 24px;
  cursor: pointer;
  transition: var(--trans);
  width: 100%;
  letter-spacing: -.01em;
}
.btn-primary:hover { background: var(--accent-hv); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(96,165,250,.3); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--text-muted);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: 'Poppins', sans-serif;
  font-size: .85rem;
  font-weight: 600;
  padding: 11px 24px;
  cursor: pointer;
  transition: var(--trans);
  width: 100%;
}
.btn-secondary:hover { border-color: var(--text-muted); color: var(--text); }

.mt-16 { margin-top: 16px; }

/* ===== TEMPLATES ===== */
.template-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 4px;
}

@media (max-width: 420px) {
  .template-grid { grid-template-columns: 1fr; }
}

.template-btn {
  background: #0F172A;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 14px 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: var(--trans);
  font-family: 'Poppins', sans-serif;
}
.template-btn:hover { border-color: var(--accent); }
.template-btn.active-tmpl { border-color: var(--accent); background: rgba(96,165,250,.1); }

.tmpl-icon { font-size: 1.4rem; }
.tmpl-name { font-size: .82rem; font-weight: 700; color: var(--text); }
.tmpl-range { font-size: .7rem; color: var(--text-muted); font-weight: 400; }

/* ===== COST GRID ===== */
.cost-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}

@media (max-width: 460px) {
  .cost-grid { grid-template-columns: 1fr; }
}

.cost-item {
  background: #0F172A;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}
.cost-item-label {
  font-size: .72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 5px;
}
.cost-item-input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: 'Poppins', sans-serif;
  font-size: .88rem;
  font-weight: 600;
}
.cost-item-input::placeholder { color: #475569; }

/* ===== TOTAL BAR ===== */
.total-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(96,165,250,.08);
  border: 1px solid rgba(96,165,250,.2);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--text);
}
.total-value { color: var(--accent); font-weight: 700; font-size: .95rem; }

/* ===== AUTO CALC BOX ===== */
.auto-calc-box {
  background: rgba(96,165,250,.07);
  border: 1px solid rgba(96,165,250,.2);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-top: 10px;
}
.ac-row {
  display: flex;
  justify-content: space-between;
  font-size: .82rem;
  font-weight: 500;
}
.ac-row + .ac-row { margin-top: 6px; }
.ac-row span:last-child { color: var(--accent); font-weight: 700; }

/* ===== INTERMEDIATE CARD ===== */
.intermediate-card {
  background: linear-gradient(135deg, rgba(96,165,250,.1), rgba(129,140,248,.08));
  border: 1px solid rgba(96,165,250,.25);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  margin-bottom: 4px;
}
.int-label { font-size: .78rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .07em; margin-bottom: 8px; }
.int-value { font-size: 1.6rem; font-weight: 800; color: var(--accent); letter-spacing: -.03em; margin-bottom: 12px; }
.int-details { margin-top: 12px; border-top: 1px solid rgba(96,165,250,.15); padding-top: 12px; }
.int-row {
  display: flex;
  justify-content: space-between;
  font-size: .8rem;
  font-weight: 500;
  color: var(--text-muted);
}
.int-row + .int-row { margin-top: 6px; }
.int-row span:last-child { color: var(--text); font-weight: 600; }

/* ===== SECTION DIVIDER ===== */
.section-divider {
  text-align: center;
  font-size: .8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin: 20px 0 4px;
  position: relative;
}
.section-divider::before, .section-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 28%;
  height: 1px;
  background: var(--border);
}
.section-divider::before { left: 0; }
.section-divider::after { right: 0; }

/* ===== RESULT SECTION ===== */
.result-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.status-card {
  border-radius: var(--radius);
  padding: 22px 20px;
  text-align: center;
}
.status-card.success {
  background: linear-gradient(135deg, rgba(22,163,74,.18), rgba(22,163,74,.08));
  border: 1.5px solid rgba(22,163,74,.4);
}
.status-card.danger {
  background: linear-gradient(135deg, rgba(220,38,38,.18), rgba(220,38,38,.08));
  border: 1.5px solid rgba(220,38,38,.4);
}

.status-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  font-size: 1.4rem;
}
.success .status-icon { background: rgba(22,163,74,.2); }
.danger .status-icon { background: rgba(220,38,38,.2); }

.status-title {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -.02em;
  margin-bottom: 4px;
}
.success .status-title { color: #4ade80; }
.danger .status-title { color: #f87171; }

.status-desc { font-size: .8rem; color: var(--text-muted); font-weight: 400; }

.result-grid {
  background: #0F172A;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 13px 18px;
  font-size: .83rem;
  border-bottom: 1px solid var(--border);
}
.result-row:last-child { border-bottom: none; }

.result-label { color: var(--text-muted); font-weight: 500; }
.result-value { font-weight: 700; color: var(--text); text-align: right; }
.result-value.accent { color: var(--accent); }
.result-value.success-clr { color: #4ade80; }
.result-value.danger-clr { color: #f87171; }

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .main-wrap { padding: 20px 14px 52px; }
  .hero { padding: 32px 0 28px; }
  .form-card { border-radius: 12px; }
  .calc-header { margin-bottom: 18px; }
}