@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800&display=swap");

:root {
  --primary: #0ea5e9;
  --primary-dark: #0369a1;
  --primary-light: #e0f2fe;
  --secondary: #8b5cf6;
  --secondary-light: #f3e8ff;

  --bg: #f4f8fc;
  --surface: #ffffff;
  --surface-2: #f8fbff;
  --sidebar-bg: #0f172a;
  --sidebar-bg-2: #1e293b;

  --text: #0f172a;
  --muted: #64748b;
  --border: #dbe7f1;

  --success-bg: #dcfce7;
  --success-text: #15803d;
  --error-bg: #fee2e2;
  --error-text: #b91c1c;

  --shadow-sm: 0 8px 20px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 18px 40px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 28px 60px rgba(15, 23, 42, 0.16);

  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;

  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background:
    radial-gradient(circle at top left, rgba(14, 165, 233, 0.10), transparent 28%),
    radial-gradient(circle at bottom right, rgba(139, 92, 246, 0.10), transparent 28%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* =========================
   DASHBOARD LAYOUT
========================= */

.layout {
  display: flex;
  min-height: 100vh;
}

/* =========================
   SIDEBAR
========================= */

.sidebar {
  width: 280px;
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  padding: 28px 18px;
  overflow-y: auto;
  color: #ffffff;
  background: linear-gradient(180deg, var(--sidebar-bg), var(--sidebar-bg-2));
  box-shadow: 10px 0 30px rgba(2, 8, 23, 0.28);
}

.sidebar h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 30px;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.sidebar h2::after {
  content: "SaaS Admin Panel";
  display: block;
  margin-top: 6px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #93c5fd;
}

.sidebar a {
  display: block;
  text-decoration: none;
  color: #dbeafe;
  padding: 14px 16px;
  margin-bottom: 10px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  position: relative;
}

.sidebar a:hover,
.sidebar a.active,
.sidebar .active {
  color: #ffffff;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.22), rgba(139, 92, 246, 0.16));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.08);
  transform: translateX(4px);
}

/* =========================
   MAIN AREA
========================= */

.main {
  margin-left: 280px;
  width: calc(100% - 280px);
  padding: 32px;
}

/* =========================
   TOP BAR / HEADER
========================= */

.top {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(219, 231, 241, 0.9);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.top h1 {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.8px;
  color: #0f172a;
  line-height: 1.15;
}

.top p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 15px;
}

.view-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 22px;
  text-decoration: none;
  border-radius: 14px;
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 14px 30px rgba(14, 165, 233, 0.25);
  transition: var(--transition);
  white-space: nowrap;
}

.view-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 38px rgba(14, 165, 233, 0.30);
}

/* =========================
   ALERTS
========================= */

.success {
  background: var(--success-bg);
  color: var(--success-text);
  border: 1px solid #bbf7d0;
  padding: 15px 18px;
  border-radius: 14px;
  margin-bottom: 20px;
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}

.error {
  background: var(--error-bg);
  color: var(--error-text);
  border: 1px solid #fecaca;
  padding: 13px 15px;
  border-radius: 12px;
  margin-bottom: 16px;
  font-weight: 700;
  font-size: 14px;
}

/* =========================
   FORM GRID
========================= */

.panel-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* =========================
   CARD
========================= */

.card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 4px;
  border-radius: 0 0 12px 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.card h3 {
  color: #0f172a;
  font-size: 21px;
  font-weight: 800;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.3px;
}

/* =========================
   LABELS & INPUTS
========================= */

label {
  display: block;
  margin-top: 16px;
  margin-bottom: 8px;
  color: #334155;
  font-size: 13px;
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  padding: 14px 15px;
  border-radius: 14px;
  outline: none;
  font-size: 15px;
  transition: var(--transition);
}

textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.6;
}

input::placeholder,
textarea::placeholder {
  color: #94a3b8;
}

input:hover,
textarea:hover {
  border-color: #bfdbfe;
}

input:focus,
textarea:focus {
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.12);
}

/* =========================
   SAVE BUTTON
========================= */

.save-btn {
  grid-column: 1 / -1;
  justify-self: end;
  width: 320px;
  border: none;
  border-radius: 16px;
  padding: 17px 24px;
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 18px 34px rgba(14, 165, 233, 0.24);
  transition: var(--transition);
  margin-bottom: 40px;
}

.save-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 42px rgba(14, 165, 233, 0.30);
}

/* =========================
   LOGIN PAGE
========================= */

.login-body {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  background:
    radial-gradient(circle at top left, rgba(14, 165, 233, 0.35), transparent 30%),
    radial-gradient(circle at bottom right, rgba(139, 92, 246, 0.30), transparent 30%),
    linear-gradient(135deg, #0f172a, #1e293b, #0f172a);
}

.login-box {
  width: 430px;
  max-width: 100%;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(255,255,255,0.35);
  backdrop-filter: blur(12px);
  padding: 40px 34px;
  border-radius: 28px;
  box-shadow: 0 30px 70px rgba(2, 8, 23, 0.28);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.login-box::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(14, 165, 233, 0.12);
}

.login-box::after {
  content: "";
  position: absolute;
  bottom: -70px;
  left: -50px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(139, 92, 246, 0.10);
}

.login-box h1 {
  position: relative;
  z-index: 1;
  font-size: 31px;
  color: #0f172a;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.6px;
}

.login-box p {
  position: relative;
  z-index: 1;
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 26px;
}

.login-box input {
  position: relative;
  z-index: 1;
  margin-bottom: 15px;
  text-align: left;
}

.login-box button {
  position: relative;
  z-index: 1;
  width: 100%;
  border: none;
  border-radius: 16px;
  padding: 15px;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 16px 30px rgba(14, 165, 233, 0.22);
  transition: var(--transition);
}

.login-box button:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 38px rgba(14, 165, 233, 0.30);
}

/* =========================
   SCROLLBAR
========================= */

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #eaf1f7;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  border-radius: 20px;
}

/* =========================
   RESPONSIVE
========================= */

@media (max-width: 1100px) {
  .panel-form {
    grid-template-columns: 1fr;
  }

  .save-btn {
    width: 100%;
    justify-self: stretch;
  }
}

@media (max-width: 850px) {
  .layout {
    display: block;
  }

  .sidebar {
    position: relative;
    width: 100%;
    height: auto;
    padding: 22px 16px;
  }

  .sidebar h2 {
    margin-bottom: 18px;
  }

  .sidebar a {
    display: inline-block;
    margin: 4px;
    padding: 12px 14px;
    font-size: 14px;
  }

  .main {
    margin-left: 0;
    width: 100%;
    padding: 20px;
  }

  .top {
    flex-direction: column;
    align-items: flex-start;
  }

  .top h1 {
    font-size: 28px;
  }

  .view-btn {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .login-box {
    padding: 30px 22px;
    border-radius: 22px;
  }

  .login-box h1 {
    font-size: 26px;
  }

  .main {
    padding: 14px;
  }

  .top {
    padding: 22px;
  }

  .top h1 {
    font-size: 24px;
  }

  .card {
    padding: 22px;
  }

  .card h3 {
    font-size: 19px;
  }

  input,
  textarea {
    padding: 13px 14px;
  }
}