/* ============================================================
   CIVITAS — Login CSS (Glassmorphism, Gradient, Micro-anims)
   ============================================================ */

:root {
    --bg: #f0f4f8;
    --glass-bg: rgba(255,255,255,0.85);
    --glass-border: rgba(255,255,255,0.5);
    --text: #1e293b;
    --text-muted: #64748b;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --accent: #14b8a6;
    --radius: 16px;
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0a0a0f;
        --glass-bg: rgba(26,32,44,0.85);
        --glass-border: rgba(255,255,255,0.1);
        --text: #f1f5f9;
        --text-muted: #94a3b8;
        --primary: #60a5fa;
        --primary-hover: #3b82f6;
        --accent: #22d3a8;
    }
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #e0e8f0 0%, #f8fafc 50%, #e0e8f0 100%);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 24px;
    position: relative;
}

.login-wrapper {
    width: 100%;
    max-width: 400px;
    background: var(--glass-bg);
    border-radius: var(--radius);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: 48px 36px 36px;
    box-shadow:
        0 8px 32px rgba(0,0,0,0.08),
        0 4px 16px rgba(0,0,0,0.04);
    animation: fadeInUp 0.5s cubic-bezier(0.16,1,0.3,1) forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: -0.02em;
}

.logo-link svg { width: 32px; height: 32px; }

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 8px;
    letter-spacing: 0.02em;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 10px;
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}

.form-input:hover { background: rgba(255,255,255,0.7); }
.form-input:focus {
    background: rgba(255,255,255,0.9);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.25);
}

.btn-login {
    position: relative;
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 8px;
    overflow: hidden;
    letter-spacing: 0.5px;
}

.btn-login::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.15) 50%, transparent 100%);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.btn-login:hover::before { transform: translateX(100%); }
.btn-login:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,0.35); }
.btn-login:active { transform: translateY(0); }
.btn-login:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.alert-error {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.3);
    border-radius: 10px;
    color: #ef4444;
    font-size: 0.9rem;
    margin-bottom: 20px;
    animation: shake 0.4s ease-in-out;
}

@keyframes shake {
    0%,100% { transform: translateX(0); }
    20%,60% { transform: translateX(-8px); }
    40%,80% { transform: translateX(8px); }
}

.alert-error svg { width: 20px; height: 20px; flex-shrink: 0; }

.login-footer {
    margin-top: 24px;
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    letter-spacing: 0.3px;
}

.link-forgot {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}
.link-forgot:hover { text-decoration: underline; }

.login-copyright {
    margin-top: 28px;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0.7;
}

@media (max-width: 480px) {
    .login-wrapper { padding: 36px 24px; }
}