/* =============================================================================
   Login only styles
   ============================================================================= */
:root {
    --shadow-card: 0 1px 3px rgba(10,30,32,0.04), 0 6px 20px rgba(10,30,32,0.07);

        --glass: rgba(234,243,252,0.85);
        --cream:           #EAF3FC;
        --ink:             #0D1B2A;
        --rust:            #C0453A;
        --gold:            #4A9EE0;
        --green:           #2A7A5A;
        --muted:           #6B8FA8;
        --border:          #BACED8;
        --placeholder:     #8AAFC4;
        --surface-input:       rgba(240,248,255,0.95);
        --shadow-btn:    0 4px 14px rgba(13,27,42,0.22);
        --sidebar-bg:      #1B3A5C;
}

* {
	box-sizing: border-box;
}

body {
	font-family: 'DM Sans', sans-serif;
	background-color: var(--cream);
	color: var(--ink);
	min-height: 100vh;
	display: grid;
	place-items: center;
	position: relative;
	overflow: hidden;
}

/* Decorative background */
body::before {
	content: '';
	position: fixed;
	inset: 0;
	background: radial-gradient(ellipse 70% 50% at 80% 10%, rgba(52,184,164,0.09) 0%, transparent 60%),
                radial-gradient(ellipse 50% 40% at 10% 90%, rgba(26,122,110,0.07) 0%, transparent 55%);
	pointer-events: none;
}

/* Subtle grid pattern */
body::after {
	content: '';
	position: fixed;
	inset: 0;
	background-image: linear-gradient(#B8E2DA 1px, transparent 1px),
                      linear-gradient(90deg, #B8E2DA 1px, transparent 1px);
	background-size: 48px 48px;
	opacity: 0.35;
	pointer-events: none;
}

.card {
	position: relative;
	z-index: 1;
	background: var(--glass);
	backdrop-filter: blur(16px);
	-webkit-backdrop-filter: blur(16px);
	border: 1px solid var(--border);
	border-radius: 2px;
	box-shadow: var(--shadow-card);
	width: 100%;
	max-width: 420px;
	padding: 48px 44px 44px;
	animation: cardIn 0.55s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes cardIn {from { opacity:0;
	transform: translateY(18px) scale(0.98);
}

to {
	opacity: 1;
	transform: translateY(0) scale(1);
}

}
.serif {
	font-family: 'Instrument Serif', serif;
}

/* Field wrapper */
.field {
	position: relative;
}

.field label {
	display: block;
	font-size: 11px;
	font-weight: 600;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--muted);
	margin-bottom: 8px;
	transition: color 0.2s;
}

.field:focus-within label {
	color: var(--ink);
}

.field input {
	width: 100%;
	background: var(--surface-input);
	border: 1px solid var(--border);
	border-radius: 2px;
	padding: 12px 14px;
	font-family: 'DM Sans', sans-serif;
	font-size: 14.5px;
	color: var(--ink);
	outline: none;
	transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.field input::placeholder {
	color: var(--placeholder);
}

.field input:focus {
	border-color: var(--gold);
	background: var(--surface-input-focus);
	box-shadow: 0 0 0 3px var(--focus-ring);
}

.field input.input-error {
	border-color: var(--rust);
	box-shadow: 0 0 0 3px rgba(185, 74, 44, 0.10);
}

.field-error {
	font-size: 12px;
	color: var(--rust);
	margin-top: 6px;
	display: none;
	animation: fadeIn 0.2s ease;
}

.field-error.visible {
	display: block;
}

@keyframes fadeIn {from { opacity:0;
	transform: translateY(-4px);
}

to {
	opacity: 1;
	transform: translateY(0);
}

}

/* Server-side error banner (Thymeleaf / Spring) */
.alert-banner {
	background: rgba(185, 74, 44, 0.08);
	border: 1px solid rgba(185, 74, 44, 0.25);
	border-left: 3px solid var(--rust);
	border-radius: 2px;
	padding: 12px 14px;
	font-size: 13.5px;
	color: var(--rust);
	margin-bottom: 28px;
	animation: fadeIn 0.25s ease;
}

.alert-banner:empty {
	display: none;
}

/* Submit button */
.btn-primary {
    width: 100%;
      align-items: center; gap: 8px;
      background: var(--ink); color: var(--cream);
      border: none; border-radius: 2px;
      padding: 13px 20px;
      font-family: 'DM Sans', sans-serif; font-size: 14px; font-weight: 500;
      letter-spacing: 0.04em; cursor: pointer;
      transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
      position: relative; overflow: hidden; text-decoration: none;
    }
    .btn-primary::after { content:''; position:absolute; inset:0; background:linear-gradient(135deg,rgba(255,255,255,0.07) 0%,transparent 60%); pointer-events:none; }
    .btn-primary:hover { background:var(--sidebar-bg); box-shadow:var(--shadow-btn); transform:translateY(-1px); }
    .btn-primary:active { transform:translateY(0); box-shadow:none; }
    .btn-primary:disabled { opacity:0.55; cursor:not-allowed; transform:none; box-shadow:none; }


/* Divider line */
.rule {
	display: flex;
	align-items: center;
	gap: 12px;
	color: var(--border);
	font-size: 11px;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--muted);
	margin: 28px 0;
}

.rule::before, .rule::after {
	content: '';
	flex: 1;
	height: 1px;
	background: var(--border);
}

/* Password toggle */
.pw-toggle {
	position: absolute;
	right: 12px;
	bottom: 11px;
	background: none;
	border: none;
	cursor: pointer;
	color: var(--muted);
	padding: 2px 4px;
	line-height: 1;
	transition: color 0.15s;
}

.pw-toggle:hover {
	color: var(--ink);
}

/* Strength bar */
.strength-track {
	height: 3px;
	background: var(--border);
	border-radius: 99px;
	margin-top: 8px;
	overflow: hidden;
}

.strength-fill {
	height: 100%;
	border-radius: 99px;
	width: 0%;
	transition: width 0.3s ease, background 0.3s ease;
}