* {
    box-sizing: border-box;
}
body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: var(--erp-font-family);
    background-color: var(--erp-color-background);
    color: var(--erp-color-text-primary);
}

/* Warm Frost canvas with restrained Slate Navy / Burgundy ambient tint */
.login-page {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1.5rem;
    background-color: var(--erp-color-background);
    background-image:
        radial-gradient(52% 44% at 12% 12%, color-mix(in srgb, var(--erp-color-primary) 7%, transparent) 0%, transparent 72%),
        radial-gradient(46% 46% at 88% 88%, color-mix(in srgb, var(--zf-accent) 6%, transparent) 0%, transparent 70%);
    overflow-x: hidden;
}

/* Single unified authentication shell */
.login-shell {
    width: 100%;
    max-width: 1140px;
    display: flex;
    align-items: stretch;
    min-height: 620px;
    margin: auto;
    overflow: hidden;
    border: 1px solid var(--zf-border);
    border-radius: var(--erp-radius-card);
    box-shadow: var(--zf-shadow-lg);
    background: var(--zf-glass-strong);
    backdrop-filter: var(--zf-blur-main);
    -webkit-backdrop-filter: var(--zf-blur-main);
}

/* ------------------------------------------------------------------
   HERO PANEL (LEFT ~52%)
   ------------------------------------------------------------------ */
.login-hero {
    flex: 1 1 52%;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 1.25rem;
    min-width: 0;
    padding: 2.5rem 2.75rem;
    overflow: hidden;
    border-right: 1px solid var(--zf-border);
    background:
        radial-gradient(120% 92% at 100% 0%, color-mix(in srgb, var(--erp-color-primary) 10%, transparent) 0%, transparent 56%),
        radial-gradient(120% 92% at 0% 100%, var(--zf-accent-light) 0%, transparent 56%),
        linear-gradient(180deg, var(--erp-color-surface) 0%, var(--erp-color-background) 100%);
}

.login-hero-ambient {
    position: absolute;
    inset: 0;
    pointer-events: none;
}
.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(34px);
}
.hero-orb-slate {
    width: 320px;
    height: 320px;
    top: -70px;
    left: -50px;
    background: radial-gradient(circle, color-mix(in srgb, var(--erp-color-primary) 18%, transparent) 0%, transparent 70%);
}
.hero-orb-burgundy {
    width: 300px;
    height: 300px;
    right: -70px;
    bottom: -80px;
    background: radial-gradient(circle, color-mix(in srgb, var(--zf-accent) 14%, transparent) 0%, transparent 70%);
}

.login-hero-visual {
    position: relative;
    z-index: 2;
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    padding: 0.25rem 0;
}
/* Naked product signature: [Z] ZENFORA — top-left */
.hero-badge {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    gap: 0.55rem;
    padding: 0;
    border: 0;
    background: none;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}
.hero-badge-mark {
    height: 24px;
    width: auto;
    object-fit: contain;
    display: block;
    flex-shrink: 0;
}
.hero-badge-label {
    font-family: var(--erp-font-family-heading);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--erp-color-text-primary);
}
.hero-illustration {
    width: 100%;
    max-width: 460px;
    height: auto;
    filter: drop-shadow(0 14px 26px color-mix(in srgb, var(--erp-color-primary) 14%, transparent));
}

.login-hero-tagline {
    position: relative;
    z-index: 2;
    max-width: 30rem;
}
.hero-title {
    font-family: var(--erp-font-family-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--erp-color-text-primary);
    line-height: 1.25;
    letter-spacing: -0.02em;
    margin: 0 0 0.5rem 0;
}
.hero-subtitle {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--erp-color-text-secondary);
    line-height: 1.55;
    margin: 0;
}

/* ------------------------------------------------------------------
   LOGIN FORM PANEL (RIGHT ~48%)
   ------------------------------------------------------------------ */
.login-form-panel {
    flex: 1 1 48%;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 0;
    padding: 2.5rem 2.75rem;
    /* Extremely subtle Warm Frost tint softening the hero → form transition */
    background: linear-gradient(90deg, color-mix(in srgb, var(--erp-color-background) 75%, transparent) 0%, color-mix(in srgb, var(--erp-color-surface) 15%, transparent) 45%);
}
.login-form-inner {
    width: 100%;
    max-width: 420px;
    transform: translateY(11px);
}

/* Centered product signature: [Z] ZENFORA */
.login-mobile-brand {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
    margin-bottom: 1.25rem;
}
.login-mobile-mark {
    height: 31px;
    width: auto;
    object-fit: contain;
    display: block;
}
.login-mobile-wordmark {
    font-family: var(--erp-font-family-heading);
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--erp-color-text-primary);
}
/* Hairline divider separating mobile branding from the login content */
.login-mobile-divider {
    display: none;
}

/* Form content is part of the unified shell — no floating card surface */
.login-card {
    width: 100%;
}

.welcome-heading {
    font-family: var(--erp-font-family-heading);
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--erp-color-text-primary);
    margin: 0 0 0.35rem 0;
    line-height: 1.2;
}
.welcome-subtitle {
    font-size: 0.875rem;
    color: var(--erp-color-text-secondary);
    margin: 0 0 1.5rem 0;
    line-height: 1.5;
}

.login-error {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    font-size: 0.8125rem;
}

.login-card .erp-field {
    margin-bottom: 1.25rem;
}
.login-card .erp-label {
    font-size: 0.8125rem;
    color: var(--erp-color-text-secondary);
}
.login-card .erp-field-help {
    color: var(--erp-color-text-secondary);
}

.login-password-control .erp-input {
    padding-right: 2.75rem;
}
.login-password-toggle {
    position: absolute;
    right: 0.4rem;
    top: 50%;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 0;
    border-radius: var(--erp-radius-sm);
    background: transparent;
    color: var(--erp-color-text-muted);
    cursor: pointer;
    z-index: 3;
    transition: color 0.15s ease, background-color 0.15s ease;
}
.login-password-toggle:hover {
    color: var(--erp-color-text-primary);
    background: var(--erp-color-surface-secondary);
}
.login-password-toggle:focus-visible {
    outline: 2px solid var(--erp-color-primary);
    outline-offset: 2px;
}

.login-submit-btn {
    width: 100%;
    height: 44px;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.login-footer-credits {
    font-size: 0.75rem;
    color: var(--erp-color-text-muted);
    text-align: center;
    margin-top: 1.25rem;
}

/* ------------------------------------------------------------------
   RESPONSIVE
   ------------------------------------------------------------------ */
@media screen and (max-width: 1023px) {
    .login-page {
        padding: 1.75rem 1.25rem;
    }
    .login-shell {
        min-height: 560px;
    }
    .login-hero {
        flex: 1 1 46%;
        padding: 2rem 2rem;
    }
    .login-form-panel {
        flex: 1 1 54%;
        padding: 2rem;
    }
    .hero-badge-mark {
        height: 22px;
    }
    .hero-illustration {
        max-width: 360px;
    }
}

@media screen and (max-width: 767px) {
    .login-page {
        padding: 1rem 1rem 1.25rem;
        align-items: flex-start;
    }
    .login-shell {
        flex-direction: column;
        min-height: 0;
        max-width: 460px;
    }
    .login-hero {
        display: none;
    }
    .login-mobile-brand {
        display: flex;
        margin-bottom: 1rem;
    }
    .login-mobile-divider {
        display: block;
        width: 100%;
        height: 1px;
        background: var(--erp-color-border);
        margin: 0 0 0.9rem;
    }
    .login-form-panel {
        flex: 1 1 auto;
        padding: 1.35rem 1.5rem 1.5rem;
        background: none;
    }
    .login-form-inner {
        max-width: 440px;
        transform: none;
    }
    .login-card .erp-field {
        margin-bottom: 1rem;
    }
    .welcome-heading {
        font-size: 1.45rem;
        margin-bottom: 0.25rem;
    }
    .welcome-subtitle {
        margin-bottom: 1.15rem;
    }
    .login-footer-credits {
        margin-top: 1rem;
    }
}

@media screen and (max-width: 400px) {
    .login-page {
        padding: 0.85rem 0.75rem 1rem;
    }
    .login-form-panel {
        padding: 1.15rem 1.15rem 1.25rem;
    }
}