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

:root {
    --c-accent:      #7c3aed;
    --c-accent-dark: #5b21b6;
    --c-accent-soft: #ede9fe;
    --c-border:      #e4e8f0;
    --c-bg:          #f4f6fb;
    --c-text:        #1a1d2e;
    --c-muted:       #6b7280;
    --c-error:       #dc2626;
    --c-error-bg:    #fff5f5;
    --radius-sm:     8px;
    --radius-md:     14px;
}

html, body {
    height: 100%;
    font-family: 'Inter', system-ui, sans-serif;
}

body {
    background: var(--c-bg);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.login-page {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
}

@media (max-width: 768px) {
    .login-page { grid-template-columns: 1fr; }
    .login-deco { display: none; }
}

.login-deco {
    background: linear-gradient(145deg, #4c1d95 0%, #7c3aed 50%, #a855f7 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}
.login-deco::before {
    content: '';
    position: absolute;
    width: 500px; height: 500px;
    border-radius: 50%;
    background: rgba(255,255,255,.05);
    top: -150px; right: -150px;
}
.login-deco::after {
    content: '';
    position: absolute;
    width: 300px; height: 300px;
    border-radius: 50%;
    background: rgba(255,255,255,.06);
    bottom: -80px; left: -80px;
}
.deco-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
}
.deco-icon {
    width: 72px; height: 72px;
    border-radius: 20px;
    background: rgba(255,255,255,.15);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
    border: 1px solid rgba(255,255,255,.2);
}
.deco-content h1 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -.04em;
    margin-bottom: .5rem;
}
.deco-content p {
    font-size: .9rem;
    opacity: .75;
    line-height: 1.7;
    max-width: 280px;
    margin: 0 auto 2rem;
}
.deco-features {
    list-style: none;
    text-align: left;
    display: inline-block;
}
.deco-features li {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-size: .875rem;
    opacity: .85;
    margin-bottom: .6rem;
}
.deco-features li i { opacity: .9; font-size: 1rem; }

.login-form-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    background: #fff;
}
.login-form-inner { width: 100%; max-width: 380px; }

.form-header { margin-bottom: 2rem; }
.form-header h2 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -.04em;
    color: var(--c-text);
    margin-bottom: .25rem;
}
.form-header p { font-size: .875rem; color: var(--c-muted); }

.field { margin-bottom: 1.1rem; }
.field label {
    display: block;
    font-size: .8rem;
    font-weight: 600;
    color: var(--c-text);
    margin-bottom: .4rem;
    letter-spacing: .01em;
}
.field-input-wrap { position: relative; }
.field-input-wrap i {
    position: absolute;
    left: .875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--c-muted);
    font-size: .9rem;
    pointer-events: none;
}
.field input {
    width: 100%;
    padding: .7rem .875rem .7rem 2.4rem;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: .9rem;
    font-family: inherit;
    color: var(--c-text);
    background: #fafbfd;
    outline: none;
    transition: border-color .15s, box-shadow .15s, background .15s;
}
.field input:focus {
    border-color: var(--c-accent);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(124,58,237,.1);
}
.field input.is-invalid {
    border-color: var(--c-error);
    background: var(--c-error-bg);
}
.field-error {
    font-size: .775rem;
    color: var(--c-error);
    margin-top: .3rem;
    display: flex;
    align-items: center;
    gap: .3rem;
}

.remember-row {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-bottom: 1.5rem;
}
.remember-row input[type="checkbox"] {
    width: 15px; height: 15px;
    accent-color: var(--c-accent);
    cursor: pointer;
}
.remember-row label {
    font-size: .8rem;
    color: var(--c-muted);
    cursor: pointer;
}

.btn-submit {
    width: 100%;
    padding: .75rem;
    border-radius: var(--radius-sm);
    font-size: .9rem;
    font-weight: 700;
    font-family: inherit;
    background: var(--c-accent);
    color: #fff;
    border: none;
    cursor: pointer;
    transition: background .15s, transform .1s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    letter-spacing: .01em;
}
.btn-submit:hover { background: var(--c-accent-dark); }
.btn-submit:active { transform: scale(.985); }

.form-footer {
    margin-top: 1.5rem;
    text-align: center;
    font-size: .8rem;
    color: var(--c-muted);
}
.form-footer a { color: var(--c-accent); text-decoration: none; font-weight: 500; }
.form-footer a:hover { text-decoration: underline; }

.admin-access {
    margin-top: 1.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--c-border);
}
.admin-access-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .65rem;
    border-radius: var(--radius-sm);
    font-size: .825rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--c-muted);
    background: #fafbfd;
    border: 1.5px solid var(--c-border);
    text-decoration: none;
    cursor: pointer;
    transition: all .15s;
    letter-spacing: .01em;
}
.admin-access-btn:hover {
    color: var(--c-accent);
    border-color: #ddd6fe;
    background: var(--c-accent-soft);
}
.admin-access-label {
    font-size: .72rem;
    color: var(--c-muted);
    text-align: center;
    margin-top: .5rem;
    opacity: .7;
}