/* ── CSS Variables ───────────────────────────────────────── */
    :root {
      --primary:        #2d6a4f;
      --primary-light:  #40916c;
      --primary-dark:   #1b4332;
      --accent:         #d4a017;
      --accent-light:   #f0c040;
      --bg-start:       #0a1f14;
      --bg-mid:         #112a1c;
      --bg-end:         #0d2318;
      --card-bg:        rgba(255,255,255,0.06);
      --card-border:    rgba(255,255,255,0.10);
      --input-bg:       rgba(255,255,255,0.07);
      --input-border:   rgba(255,255,255,0.15);
      --input-focus:    rgba(64,145,108,0.5);
      --text-primary:   #f0f4f1;
      --text-secondary: rgba(240,244,241,0.55);
      --text-muted:     rgba(240,244,241,0.35);
      --error-bg:       rgba(220,53,69,0.15);
      --error-border:   rgba(220,53,69,0.4);
      --radius-card:    20px;
      --radius-input:   10px;
      --shadow-card:    0 32px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.06);
      --transition:     0.25s cubic-bezier(0.4,0,0.2,1);
    }

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

    body {
      font-family: 'DM Sans', sans-serif;
      background: radial-gradient(ellipse at 30% 20%, #1a3d26 0%, var(--bg-start) 55%),
                  radial-gradient(ellipse at 80% 80%, #162b1e 0%, var(--bg-end) 60%);
      background-blend-mode: screen;
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      position: relative;
    }

    /* ── Animated mesh background ────────────────────────────── */
    .bg-mesh {
      position: fixed;
      inset: 0;
      z-index: 0;
      pointer-events: none;
    }
    .bg-mesh::before {
      content: '';
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 20% 20%, rgba(45,106,79,0.25) 0%, transparent 50%),
        radial-gradient(circle at 80% 75%, rgba(27,67,50,0.3) 0%, transparent 50%),
        radial-gradient(circle at 60% 10%, rgba(212,160,23,0.06) 0%, transparent 40%);
      animation: meshPulse 8s ease-in-out infinite alternate;
    }
    @keyframes meshPulse {
      from { opacity: 0.7; transform: scale(1); }
      to   { opacity: 1;   transform: scale(1.05); }
    }

    /* Grain overlay for texture */
    .bg-grain {
      position: fixed;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      opacity: 0.035;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
      background-size: 200px 200px;
    }

    /* ── Floating leaves ─────────────────────────────────────── */
    .floating-leaves {
      position: fixed;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      overflow: hidden;
    }
    .leaf {
      position: absolute;
      opacity: 0;
      animation: floatLeaf linear infinite;
      user-select: none;
    }
    @keyframes floatLeaf {
      0%   { transform: translateY(110vh) rotate(0deg) scale(0.8);  opacity: 0; }
      8%   { opacity: 0.18; }
      92%  { opacity: 0.18; }
      100% { transform: translateY(-120px) rotate(400deg) scale(1.1); opacity: 0; }
    }

    /* ── Login wrapper ───────────────────────────────────────── */
    .login-wrapper {
      position: relative;
      z-index: 10;
      width: 100%;
      max-width: 440px;
      padding: 20px;
      animation: cardEntrance 0.7s cubic-bezier(0.34,1.56,0.64,1) both;
    }
    @keyframes cardEntrance {
      from { opacity: 0; transform: translateY(40px) scale(0.95); }
      to   { opacity: 1; transform: translateY(0)    scale(1);    }
    }

    /* ── Card ────────────────────────────────────────────────── */
    .login-card {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-card);
      padding: 40px 36px 32px;
      backdrop-filter: blur(24px) saturate(160%);
      -webkit-backdrop-filter: blur(24px) saturate(160%);
      box-shadow: var(--shadow-card);
    }

    /* ── Logo block ──────────────────────────────────────────── */
    .logo-block {
      text-align: center;
      margin-bottom: 32px;
    }
    .logo-icon {
      width: 72px;
      height: 72px;
      background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
      border-radius: 20px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 34px;
      margin-bottom: 14px;
      box-shadow: 0 8px 30px rgba(64,145,108,0.35);
      animation: iconFloat 3.5s ease-in-out infinite;
    }
    @keyframes iconFloat {
      0%,100% { transform: translateY(0);    }
      50%      { transform: translateY(-6px); }
    }
    .app-name {
      font-family: 'Playfair Display', serif;
      font-size: 30px;
      font-weight: 700;
      color: var(--text-primary);
      letter-spacing: 0.5px;
      line-height: 1.1;
    }
    .app-tagline {
      margin-top: 5px;
      font-size: 12.5px;
      font-weight: 400;
      color: var(--text-secondary);
      letter-spacing: 1.5px;
      text-transform: uppercase;
    }

    /* ── Divider ─────────────────────────────────────────────── */
    .divider {
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--card-border), transparent);
      margin: 0 -36px 28px;
    }

    /* ── Form elements ───────────────────────────────────────── */
    .field-label {
      display: block;
      font-size: 11.5px;
      font-weight: 600;
      color: var(--text-secondary);
      letter-spacing: 1.2px;
      text-transform: uppercase;
      margin-bottom: 7px;
    }
    .field-wrap {
      position: relative;
      margin-bottom: 18px;
    }
    .field-icon {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-muted);
      font-size: 15px;
      pointer-events: none;
      transition: color var(--transition);
    }
    .field-wrap:focus-within .field-icon { color: var(--primary-light); }

    .login-input {
      width: 100%;
      background: var(--input-bg);
      border: 1px solid var(--input-border);
      border-radius: var(--radius-input);
      color: var(--text-primary);
      font-family: 'DM Sans', sans-serif;
      font-size: 14.5px;
      padding: 12px 14px 12px 40px;
      outline: none;
      transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
      -webkit-appearance: none;
    }
    .login-input::placeholder { color: var(--text-muted); }
    .login-input:focus {
      border-color: var(--primary-light);
      background: rgba(255,255,255,0.09);
      box-shadow: 0 0 0 3px var(--input-focus);
    }
    .login-input.input-error {
      border-color: rgba(220,53,69,0.6);
      box-shadow: 0 0 0 3px rgba(220,53,69,0.15);
    }
    /* Autofill style override */
    .login-input:-webkit-autofill,
    .login-input:-webkit-autofill:focus {
      -webkit-box-shadow: 0 0 0 1000px #1a3d26 inset !important;
      -webkit-text-fill-color: var(--text-primary) !important;
      transition: background-color 5000s ease-in-out 0s;
    }

    .pwd-toggle {
      position: absolute;
      right: 12px;
      top: 50%;
      transform: translateY(-50%);
      background: none;
      border: none;
      color: var(--text-muted);
      cursor: pointer;
      padding: 4px;
      font-size: 15px;
      transition: color var(--transition);
    }
    .pwd-toggle:hover { color: var(--primary-light); }

    /* ── Error alert ─────────────────────────────────────────── */
    .error-alert {
      background: var(--error-bg);
      border: 1px solid var(--error-border);
      border-radius: 8px;
      padding: 10px 14px;
      font-size: 13px;
      color: #f8a8ae;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
      animation: shake 0.4s ease;
    }
    @keyframes shake {
      0%,100% { transform: translateX(0); }
      20%,60%  { transform: translateX(-6px); }
      40%,80%  { transform: translateX(6px); }
    }

    /* ── Login button ────────────────────────────────────────── */
    .login-btn {
      width: 100%;
      background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
      border: none;
      border-radius: var(--radius-input);
      color: #fff;
      font-family: 'DM Sans', sans-serif;
      font-size: 15px;
      font-weight: 600;
      padding: 13px 24px;
      cursor: pointer;
      letter-spacing: 0.5px;
      transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
      box-shadow: 0 6px 24px rgba(45,106,79,0.4);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      margin-top: 6px;
      position: relative;
      overflow: hidden;
    }
    .login-btn::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(255,255,255,0.12), transparent);
      border-radius: inherit;
    }
    .login-btn:hover:not(:disabled) {
      transform: translateY(-2px);
      box-shadow: 0 12px 32px rgba(45,106,79,0.5);
      filter: brightness(1.08);
    }
    .login-btn:active:not(:disabled) {
      transform: translateY(0);
      box-shadow: 0 4px 12px rgba(45,106,79,0.4);
    }
    .login-btn:disabled {
      opacity: 0.7;
      cursor: not-allowed;
      transform: none;
    }

    /* Spinner inside button */
    .spinner {
      width: 18px; height: 18px;
      border: 2px solid rgba(255,255,255,0.3);
      border-top-color: #fff;
      border-radius: 50%;
      animation: spin 0.7s linear infinite;
      display: none;
    }
    .login-btn.loading .btn-text { display: none; }
    .login-btn.loading .spinner { display: inline-block; }
    @keyframes spin { to { transform: rotate(360deg); } }

    /* ── Footer ──────────────────────────────────────────────── */
    .login-footer {
      margin-top: 24px;
      padding-top: 18px;
      border-top: 1px solid var(--card-border);
      text-align: center;
    }
    .login-footer p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .login-footer a {
      color: var(--accent-light);
      text-decoration: none;
      font-weight: 500;
      transition: color var(--transition);
    }
    .login-footer a:hover { color: var(--accent); }

    /* ── Version badge ───────────────────────────────────────── */
    .version-badge {
      position: fixed;
      bottom: 16px;
      left: 50%;
      transform: translateX(-50%);
      color: var(--text-muted);
      font-size: 11px;
      z-index: 10;
      white-space: nowrap;
    }

    /* ── Responsive ──────────────────────────────────────────── */
    @media (max-width: 480px) {
      .login-card { padding: 30px 22px 24px; }
      .login-wrapper { padding: 12px; }
      .app-name { font-size: 26px; }
    }