styles.css

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

:root {
  color: #eaf5f0;
  background: #061410;
  font-family: 'DM Sans', sans-serif;
  font-synthesis: none;
  --ink: #eaf5f0;
  --muted: #89a49a;
  --line: rgba(156, 193, 178, 0.14);
  --panel: rgba(12, 36, 29, 0.72);
  --lime: #b8f23f;
  --mint: #56d6a4;
  --coral: #ff856f;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; min-height: 100vh; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 72% -10%, rgba(94, 190, 143, .18), transparent 31rem),
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: auto, 48px 48px, 48px 48px;
}

.app-shell { position: relative; max-width: 1320px; margin: auto; padding: 0 44px; }
.topbar { height: 88px; display: flex; align-items: center; border-bottom: 1px solid var(--line); gap: 32px; }
.brand { color: var(--ink); display: flex; align-items: center; gap: 11px; text-decoration: none; font: 800 20px 'Manrope'; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; color: #07140f; background: var(--lime); }

.hero { min-height: 390px; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.eyebrow { color: var(--lime); font-size: 10px; font-weight: 800; letter-spacing: .18em; }
.hero h1 { font: 800 clamp(48px, 7.2vw, 94px)/.91 'Manrope'; letter-spacing: -.065em; margin: 15px 0 23px; }
.hero h1 em { color: var(--lime); font-style: normal; }
.hero p { color: var(--muted); font-size: 16px; line-height: 1.7; max-width: 520px; margin: 0; }
.month-picker { display: grid; gap: 10px; color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .08em; }
.month-picker .picker-trigger { min-width: 190px; padding: 14px 16px; border-radius: 12px; background: var(--panel); }
.month-picker .calendar-popover { right: 0; left: auto; }
.error-banner { padding: 12px 16px; border: 1px solid rgba(255,133,111,.35); background: rgba(255,133,111,.1); color: #ffc2b7; border-radius: 10px; margin-bottom: 18px; }

.summary-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 17px; overflow: hidden; background: rgba(7, 27, 21, .75); }
.summary-card { padding: 27px 30px; display: grid; gap: 9px; position: relative; }
.summary-card + .summary-card { border-left: 1px solid var(--line); }
.summary-card span, .summary-card small { color: var(--muted); }
.summary-card span { font-size: 12px; font-weight: 700; }
.summary-card strong { font: 700 clamp(25px, 3.2vw, 38px) 'Manrope'; letter-spacing: -.035em; }
.summary-card small { font-size: 11px; }
.summary-card--income strong { color: var(--mint); }
.summary-card--expense strong { color: var(--coral); }

.analysis-panel { margin-top: 20px; overflow: hidden; }
.analysis-caption { color: var(--muted); font-size: 11px; }
.analysis-grid { display: grid; grid-template-columns: .8fr 1.2fr; }
.chart-card { min-width: 0; padding: 25px 27px 28px; }
.chart-card + .chart-card { border-left: 1px solid var(--line); }
.chart-heading h3 { margin: 0; font: 700 14px 'Manrope'; }
.chart-heading p { margin: 6px 0 0; color: var(--muted); font-size: 11px; }
.flow-chart { height: 205px; display: flex; align-items: flex-end; justify-content: center; gap: clamp(28px, 5vw, 68px); padding-top: 25px; }
.flow-column { height: 100%; min-width: 90px; display: grid; grid-template-rows: auto 1fr auto; justify-items: center; gap: 9px; }
.flow-column strong { font-size: 11px; }
.flow-column small { color: var(--muted); font-size: 10px; }
.flow-track { width: 54px; height: 100%; display: flex; align-items: flex-end; overflow: hidden; border-radius: 9px 9px 4px 4px; background: rgba(255,255,255,.035); }
.flow-fill { width: 100%; min-height: 3px; border-radius: 9px 9px 3px 3px; transition: height .35s ease; }
.flow-fill.income { background: linear-gradient(180deg, var(--mint), rgba(86,214,164,.35)); }
.flow-fill.expense { background: linear-gradient(180deg, var(--coral), rgba(255,133,111,.35)); }
.category-chart { display: grid; gap: 17px; margin-top: 27px; }
.category-row { display: grid; gap: 8px; }
.category-label { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.category-label strong { font-size: 11px; }
.category-label span { color: var(--muted); font-size: 10px; }
.category-track { height: 7px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.045); }
.category-track span { display: block; height: 100%; min-width: 3px; border-radius: inherit; background: linear-gradient(90deg, var(--lime), var(--mint)); transition: width .35s ease; }
.chart-empty { min-height: 164px; margin: 24px 0 0; padding: 42px 20px; display: grid; place-items: center; color: var(--muted); font-size: 11px; line-height: 1.6; text-align: center; border: 1px dashed var(--line); border-radius: 11px; }

.content-grid { display: grid; grid-template-columns: 1.35fr .8fr; gap: 20px; margin-top: 20px; align-items: start; }
.panel, .transaction-form { border: 1px solid var(--line); border-radius: 17px; background: var(--panel); backdrop-filter: blur(20px); }
.panel-heading, .form-heading { display: flex; align-items: center; justify-content: space-between; padding: 25px 27px; border-bottom: 1px solid var(--line); }
.panel h2, .transaction-form h2 { font: 700 19px 'Manrope'; margin: 7px 0 0; }
.count-badge { border: 1px solid var(--line); color: var(--muted); border-radius: 99px; min-width: 30px; height: 30px; display: grid; place-items: center; font-size: 11px; }
.transaction-list { padding: 5px 25px 12px; }
.transaction-item { display: grid; grid-template-columns: 42px 1fr auto 26px; align-items: center; gap: 13px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.transaction-item:last-child { border: 0; }
.transaction-icon { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; font-weight: 700; }
.transaction-icon.income { color: var(--mint); background: rgba(86,214,164,.1); }
.transaction-icon.expense { color: var(--coral); background: rgba(255,133,111,.1); }
.transaction-copy { display: grid; gap: 4px; min-width: 0; }
.transaction-copy strong { font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.transaction-copy span { color: var(--muted); font-size: 11px; }
.transaction-item > strong { font-size: 13px; }
.transaction-item > strong.income { color: var(--mint); }
.transaction-item > strong.expense { color: var(--coral); }
.delete-button { opacity: 0; cursor: pointer; background: none; color: var(--muted); border: 0; font-size: 20px; transition: .2s; }
.transaction-item:hover .delete-button { opacity: 1; }
.empty-state { color: var(--muted); margin: 0; padding: 50px 28px; text-align: center; }

.transaction-form { padding-bottom: 26px; }
.transaction-form .form-heading { padding: 23px 25px; }
.segmented { display: flex; gap: 2px; padding: 3px; background: rgba(2,12,9,.5); border: 1px solid var(--line); border-radius: 10px; }
.segmented button { background: transparent; border: 0; color: var(--muted); padding: 7px 10px; border-radius: 7px; font-size: 10px; cursor: pointer; transition: color .2s, background .2s, box-shadow .2s; }
.segmented button:hover { color: var(--ink); }
.segmented button:focus-visible { outline: 2px solid rgba(184,242,63,.55); outline-offset: 2px; }
.segmented button.active { background: #1b3a31; color: var(--ink); box-shadow: 0 1px 7px rgba(0,0,0,.2); }
.transaction-form > label, .form-row { margin: 18px 25px 0; }
.transaction-form label, .transaction-form .field-group { display: grid; gap: 8px; color: var(--muted); font-size: 11px; font-weight: 600; }
.transaction-form input, .transaction-form select { width: 100%; min-height: 43px; color: var(--ink); color-scheme: dark; background: rgba(3,18,13,.6); border: 1px solid var(--line); border-radius: 9px; outline: none; padding: 12px 13px; transition: border-color .2s, background .2s, box-shadow .2s; }
.transaction-form input:hover, .transaction-form select:hover { background: rgba(7,27,20,.78); border-color: rgba(156,193,178,.28); }
.transaction-form input:focus, .transaction-form select:focus { border-color: rgba(184,242,63,.55); box-shadow: 0 0 0 3px rgba(184,242,63,.07); }
.select-control { position: relative; display: block; }
.select-control::after { content: ''; position: absolute; top: 50%; right: 16px; width: 6px; height: 6px; border-right: 1.5px solid var(--muted); border-bottom: 1.5px solid var(--muted); transform: translateY(-70%) rotate(45deg); pointer-events: none; transition: border-color .2s; }
.select-control:focus-within::after { border-color: var(--lime); }
.select-control select { appearance: none; cursor: pointer; padding-right: 42px; }
.select-control option { color: var(--ink); background: #0c241d; }
.calendar-picker { position: relative; display: block; width: 100%; letter-spacing: normal; }
.picker-trigger { width: 100%; min-height: 43px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 13px; color: var(--ink); background: rgba(3,18,13,.6); border: 1px solid var(--line); border-radius: 9px; cursor: pointer; text-align: left; transition: border-color .2s, background .2s, box-shadow .2s; }
.picker-trigger:hover { background: rgba(7,27,20,.78); border-color: rgba(156,193,178,.28); }
.picker-trigger:focus-visible, .picker-trigger[aria-expanded='true'] { outline: none; border-color: rgba(184,242,63,.55); box-shadow: 0 0 0 3px rgba(184,242,63,.07); }
.picker-trigger i { color: var(--muted); font-style: normal; font-size: 15px; transform: translateY(-2px); }
.picker-trigger[aria-expanded='true'] i { color: var(--lime); transform: rotate(180deg) translateY(-1px); }
.calendar-popover { position: absolute; z-index: 50; top: calc(100% + 9px); left: 0; width: 304px; display: block; padding: 14px; color: var(--ink); background: #0b211a; border: 1px solid rgba(156,193,178,.22); border-radius: 14px; box-shadow: 0 22px 55px rgba(0,0,0,.45); backdrop-filter: blur(20px); }
.calendar-header { display: grid; grid-template-columns: 34px 1fr 34px; align-items: center; gap: 8px; margin-bottom: 13px; }
.calendar-header strong { text-align: center; font: 700 12px 'Manrope'; text-transform: capitalize; }
.calendar-header button, .month-grid button, .day-grid button, .calendar-current { color: var(--muted); background: transparent; border: 0; cursor: pointer; }
.calendar-header button { width: 34px; height: 34px; border-radius: 8px; font-size: 16px; }
.calendar-header button:hover, .month-grid button:hover, .day-grid button:hover { color: var(--ink); background: rgba(255,255,255,.06); }
.calendar-header button:focus-visible, .month-grid button:focus-visible, .day-grid button:focus-visible, .calendar-current:focus-visible { outline: 2px solid rgba(184,242,63,.6); outline-offset: 1px; }
.month-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; }
.month-grid button { height: 39px; border-radius: 8px; font-size: 11px; }
.weekday-grid, .day-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 3px; }
.weekday-grid { margin-bottom: 5px; }
.weekday-grid small { color: #688479; font-size: 8px; font-weight: 700; text-align: center; text-transform: uppercase; }
.day-grid i { display: block; }
.day-grid button { aspect-ratio: 1; border-radius: 8px; font-size: 10px; }
.month-grid button.selected, .day-grid button.selected { color: #07140f; background: var(--lime); font-weight: 800; }
.day-grid button.today:not(.selected) { color: var(--lime); box-shadow: inset 0 0 0 1px rgba(184,242,63,.35); }
.calendar-current { width: 100%; margin-top: 11px; padding: 9px; color: var(--lime); border-top: 1px solid var(--line); font-size: 10px; font-weight: 700; }
.calendar-current:hover { color: #d7ff84; }
.form-row .field-group:last-child .calendar-popover { right: 0; left: auto; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.primary-button { margin: 22px 25px 0; width: calc(100% - 50px); cursor: pointer; border: 0; color: #0b1a13; font-weight: 800; background: var(--lime); border-radius: 10px; padding: 13px; box-shadow: 0 8px 25px rgba(184,242,63,.1); }
.primary-button:disabled { opacity: .55; cursor: wait; }

.insight-bar { margin: 20px 0 70px; padding: 20px 24px; display: flex; align-items: center; gap: 16px; border: 1px solid rgba(184,242,63,.2); border-radius: 15px; background: linear-gradient(90deg, rgba(184,242,63,.08), rgba(184,242,63,.01)); }
.insight-icon { width: 37px; height: 37px; display: grid; place-items: center; color: var(--lime); border: 1px solid rgba(184,242,63,.25); border-radius: 99px; }
.insight-bar div { display: grid; gap: 4px; }
.insight-bar strong { font-size: 13px; }

@media (max-width: 840px) {
  .app-shell { padding: 0 20px; }
  .hero { min-height: 350px; align-items: flex-start; flex-direction: column; justify-content: center; }
  .month-picker { align-self: stretch; }
  .month-picker .picker-trigger { width: 100%; }
  .summary-grid, .analysis-grid, .content-grid { grid-template-columns: 1fr; }
  .summary-card + .summary-card { border-left: 0; border-top: 1px solid var(--line); }
  .chart-card + .chart-card { border-left: 0; border-top: 1px solid var(--line); }
}

@media (max-width: 520px) {
  .hero h1 { font-size: 54px; }
  .transaction-item { grid-template-columns: 38px 1fr auto; }
  .delete-button { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .form-row .field-group:last-child .calendar-popover { right: auto; left: 0; }
  .calendar-popover { width: min(304px, calc(100vw - 66px)); }
  .analysis-heading { align-items: flex-start; gap: 16px; }
  .analysis-caption { max-width: 120px; text-align: right; }
}