/* ==============================
   GLOBAL VARIABLES
============================== */
:root {
  --bg: linear-gradient(120deg, #120a28 0%, #2d0c55 100%);
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.15);
  --accent: #7c4dff; /* Purple */
  --accent-light: #b388ff;
  --text: rgba(255, 255, 255, 0.95);
  --muted: rgba(255, 255, 255, 0.7);
  --danger: #ff6b6b;
  --card-radius: 14px;
}

/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", Arial, sans-serif;
}

html, body {
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* ==============================
   CONTAINERS & LAYOUT
============================== */
.container {
  max-width: 1100px;
  margin: 32px auto;
  padding: 16px;
}

.center-col {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
}

/* ==============================
   GLASS CARD STYLING
============================== */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  border-radius: var(--card-radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* Auth Card */
.auth-card {
  max-width: 450px;
  width: 100%;
  padding: 28px;
}

/* Branding */
.brand {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 6px;
}

.brand span {
  color: var(--accent);
}

.brand-small {
  font-size: 20px;
  font-weight: 600;
}

/* ==============================
   FORMS
============================== */
.form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-row {
  display: flex;
  flex-direction: column;
}

label {
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--muted);
}

input,
textarea,
select {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text);
  padding: 12px;
  border-radius: 10px;
  outline: none;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.1);
}

textarea {
  min-height: 90px;
}

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

/* ==============================
   BUTTONS
============================== */
.btn {
  padding: 10px 14px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  transition: 0.25s ease-in-out;
  color: var(--text);
}

.btn.primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  color: #fff;
}

.btn.primary:hover {
  opacity: 0.9;
}

.btn.ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn.danger {
  background: linear-gradient(90deg, #ff5252, #ff6b6b);
  color: #fff;
}

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

/* ==============================
   TOP NAVBAR
============================== */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  margin-bottom: 20px;
}

.topbar nav {
  display: flex;
  gap: 12px;
}

.topbar a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  transition: 0.2s;
}

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

/* ==============================
   DASHBOARD CARDS
============================== */
.grid {
  display: flex;
  gap: 16px;
}

.three-cols {
  flex-wrap: wrap;
}

.stat-card {
  flex: 1;
  min-width: 180px;
  padding: 24px;
  text-align: center;
}

.stat-card p {
  font-size: 24px;
  font-weight: bold;
  margin-top: 6px;
}

/* ==============================
   TASK LIST PAGE
============================== */
.list-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 14px;
}

.cards-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.task-card {
  padding: 16px;
  min-width: 260px;
  flex: 1;
}

/* ==============================
   MODAL
============================== */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
}

.modal[aria-hidden="false"] {
  display: flex;
}

.modal-content {
  padding: 22px;
  width: 90%;
  max-width: 420px;
}

/* ==============================
   ERROR DISPLAY
============================== */
.error {
  background: rgba(255, 60, 60, 0.13);
  color: #ffb4b4;
  padding: 10px;
  border-radius: 10px;
  font-size: 14px;
}

/* ==============================
   RESPONSIVENESS
============================== */
@media (max-width: 768px) {
  .container {
    padding: 12px;
    margin: 12px auto;
  }

  .grid {
    flex-direction: column;
  }

  .auth-card {
    margin: 20px;
  }
}