/* Tách từ templates/login.html (khối <style> #1) — GĐ D.
   Thẻ <link> nằm ĐÚNG vị trí thẻ <style> cũ nên thứ tự cascade
   không đổi. Sửa file này thay vì thêm CSS inline vào template. */
        :root {
            /* Theme xanh lá đồng bộ với navbar (hover:text-green-500) */
            --lg-primary: var(--wm-brand);        /* green-500 */
            --lg-primary-dark: var(--wm-brand-mid);   /* green-600 */
            --lg-primary-darker: var(--wm-brand-deep); /* green-700 */
            --lg-primary-soft: var(--wm-brand-soft);   /* green-50 */
            --lg-text: var(--wm-gray-900);
            --lg-text-soft: var(--wm-gray-600);
            --lg-muted: var(--wm-gray-500);
            --lg-border: var(--wm-gray-200);
            --lg-bg-soft: var(--wm-gray-50);
            --lg-danger: var(--wm-red-deep);
            --lg-success: var(--wm-brand);
            --lg-warning: var(--wm-warn);
        }

        * { box-sizing: border-box; }
        html, body { margin: 0; padding: 0; height: 100%; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
            color: var(--lg-text);
            background: var(--lg-bg-soft);
            min-height: 100vh;
            overflow-x: hidden;
        }

        /* ====== Layout ====== */
        .login-shell {
            display: grid;
            grid-template-columns: 1fr 1fr;
            min-height: 100vh;
        }
        @media (max-width: 960px) {
            .login-shell { grid-template-columns: 1fr; }
            .login-brand { display: none; }
        }

        /* ====== LEFT: Brand panel ====== */
        .login-brand {
            position: relative;
            background: linear-gradient(135deg, var(--lg-primary) 0%, var(--lg-primary-darker) 100%);
            color: #fff;
            padding: 3rem 3.5rem;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            overflow: hidden;
        }
        .login-brand::before, .login-brand::after {
            content: "";
            position: absolute;
            border-radius: 50%;
            background: rgba(255,255,255,0.07);
            pointer-events: none;
        }
        .login-brand::before { width: 480px; height: 480px; top: -140px; right: -160px; }
        .login-brand::after  { width: 340px; height: 340px; bottom: -140px; left: -90px; background: rgba(255,255,255,0.05); }

        .brand-top { position: relative; z-index: 1; display: flex; align-items: center; gap: 0.8rem; }
        .brand-logo {
            width: 46px; height: 46px; border-radius: 12px;
            background: rgba(255,255,255,0.2);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.45rem; backdrop-filter: blur(6px);
            border: 1px solid rgba(255,255,255,0.3);
        }
        .brand-name { font-size: 1.15rem; font-weight: 700; letter-spacing: 0.4px; }

        .brand-mid { position: relative; z-index: 1; max-width: 480px; margin-top: 1rem; }
        .brand-mid h2 {
            font-size: 2.15rem; font-weight: 800; margin: 0 0 0.95rem;
            line-height: 1.22; letter-spacing: -0.5px;
        }
        .brand-mid p {
            font-size: 1rem; line-height: 1.6;
            opacity: 0.92; margin: 0 0 2.2rem;
        }

        .brand-features { display: grid; gap: 1rem; }
        .brand-feature {
            display: flex; align-items: flex-start; gap: 0.9rem;
            padding: 0.7rem 0; opacity: 0.95;
        }
        .brand-feature-icon {
            width: 38px; height: 38px; border-radius: 10px;
            background: rgba(255,255,255,0.18);
            display: flex; align-items: center; justify-content: center;
            flex-shrink: 0; font-size: 0.95rem;
            border: 1px solid rgba(255,255,255,0.22);
        }
        .brand-feature-text strong { display: block; font-weight: 700; margin-bottom: 3px; }
        .brand-feature-text span { font-size: 0.86rem; opacity: 0.84; line-height: 1.5; }

        .brand-foot { position: relative; z-index: 1; font-size: 0.78rem; opacity: 0.7; }

        /* ====== RIGHT: Form panel ====== */
        .login-form-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 2.5rem 2rem;
            background: #fff;
        }
        .login-form { width: 100%; max-width: 400px; }

        .login-form-header { text-align: center; margin-bottom: 1.8rem; }
        .login-form-header .header-icon {
            width: 64px; height: 64px;
            margin: 0 auto 1rem;
            border-radius: 18px;
            background: linear-gradient(135deg, var(--lg-primary) 0%, var(--lg-primary-darker) 100%);
            color: #fff;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.6rem;
            box-shadow: 0 8px 20px rgba(16,185,129,0.25);
        }
        .login-form-header h1 {
            font-size: 1.7rem; font-weight: 800; color: var(--lg-text);
            margin: 0 0 0.45rem; letter-spacing: -0.3px;
        }
        .login-form-header p { font-size: 0.92rem; color: var(--lg-muted); margin: 0; }

        /* Flash messages */
        .login-flash {
            border-radius: 10px; padding: 0.75rem 1rem; font-size: 0.85rem;
            margin-bottom: 1rem; display: flex; align-items: center; gap: 0.6rem;
            animation: slideDown 0.3s ease;
        }
        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-6px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .login-flash.flash-error    { background: var(--wm-red-tint); color: var(--lg-danger); border: 1px solid #fecaca; }
        .login-flash.flash-success  { background: var(--lg-primary-soft); color: var(--lg-primary-darker); border: 1px solid var(--wm-brand-200); }
        .login-flash.flash-warning  { background: #fffbeb; color: var(--wm-warn-deep); border: 1px solid #fde68a; }
        .login-flash.flash-info     { background: var(--lg-primary-soft); color: var(--lg-primary-darker); border: 1px solid var(--wm-brand-200); }

        /* Fields */
        .field-group { margin-bottom: 1rem; }
        .field-label {
            display: block; font-size: 0.78rem; font-weight: 600;
            color: var(--lg-text-soft); margin-bottom: 0.45rem;
            letter-spacing: 0.02em;
        }
        .input-wrap { position: relative; }
        .input-wrap > .input-icon {
            position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
            color: var(--lg-muted); font-size: 0.95rem; pointer-events: none;
            transition: color 0.18s ease;
        }
        .input-wrap input.field-input {
            width: 100%; height: 46px;
            padding: 0 2.6rem 0 2.6rem;
            border: 1.5px solid var(--lg-border); border-radius: 10px;
            font-size: 0.95rem; color: var(--lg-text);
            background: #fff;
            transition: border-color 0.18s ease, box-shadow 0.18s ease;
        }
        .input-wrap input.field-input::placeholder { color: var(--wm-gray-400); }
        .input-wrap input.field-input:focus {
            outline: none;
            border-color: var(--lg-primary);
            box-shadow: 0 0 0 3px rgba(16,185,129,0.18);
        }
        .input-wrap.has-icon-focus > .input-icon { color: var(--lg-primary); }

        .toggle-pwd {
            position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
            background: none; border: none; color: var(--lg-muted); cursor: pointer;
            padding: 4px; border-radius: 6px; transition: color 0.15s ease, background 0.15s ease;
        }
        .toggle-pwd:hover { color: var(--lg-primary); background: var(--lg-primary-soft); }

        .row-between {
            display: flex; align-items: center; justify-content: space-between;
            margin: 1rem 0 1.4rem;
        }
        .check-wrap {
            display: flex; align-items: center; gap: 0.5rem;
            font-size: 0.85rem; color: var(--lg-text-soft); cursor: pointer;
            user-select: none;
        }
        .check-wrap input[type="checkbox"] {
            width: 16px; height: 16px; accent-color: var(--lg-primary);
            cursor: pointer;
        }
        .forgot-link {
            font-size: 0.85rem; color: var(--lg-primary-dark);
            text-decoration: none; font-weight: 600;
            transition: color 0.15s ease;
        }
        .forgot-link:hover { color: var(--lg-primary-darker); text-decoration: underline; }

        /* Submit button */
        .btn-submit {
            width: 100%; height: 48px; border: none; cursor: pointer;
            background: linear-gradient(135deg, var(--lg-primary) 0%, var(--lg-primary-dark) 100%);
            color: #fff; font-weight: 700; font-size: 0.95rem;
            border-radius: 10px;
            display: flex; align-items: center; justify-content: center; gap: 0.5rem;
            box-shadow: 0 6px 14px rgba(16,185,129,0.3);
            transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
        }
        .btn-submit:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(16,185,129,0.4); }
        .btn-submit:active { transform: translateY(0); }
        .btn-submit:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }

        .login-foot {
            margin-top: 1.6rem; padding-top: 1.2rem;
            border-top: 1px solid var(--lg-border);
            font-size: 0.82rem; color: var(--lg-muted); text-align: center;
        }
        .login-foot strong { color: var(--lg-primary-dark); }