/* Compact & Professional Layout Fix */
:root {
    --login-hero-width: 55%;
    --login-panel-width: 45%;
    --login-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body {
    margin: 0;
    padding: 0;
    height: 100vh;
    overflow: hidden !important;
}

.login-layout {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    background-color: var(--clr-surface);
}

@media (min-width: 1024px) {
    .login-layout {
        flex-direction: row;
    }
}

/* Hero Section */
.login-hero {
    position: relative;
    width: 100%;
    height: 35vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: var(--clr-primary);
}

@media (min-width: 1024px) {
    .login-hero {
        width: var(--login-hero-width);
        height: 100vh;
    }
}

.login-hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.login-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.6) contrast(1.1);
}

.login-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(3, 25, 53, 0.95) 0%, rgba(3, 25, 53, 0.6) 50%, rgba(119, 90, 25, 0.2) 100%);
    z-index: 1;
}

.login-hero-content {
    position: relative;
    z-index: 10;
    padding: 2rem;
    max-width: 40rem;
    color: white;
}

.login-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.8rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}

.login-hero-content h1 {
    font-size: 2.5rem;
    line-height: 1;
    margin-bottom: 1rem;
    letter-spacing: -0.04em;
}

@media (min-width: 768px) {
    .login-hero-content h1 { font-size: 3.5rem; }
}

.login-hero-content p {
    font-size: 1rem;
    font-weight: 300;
    opacity: 0.85;
    max-width: 28rem;
    line-height: 1.5;
}

/* Panel Section */
.login-panel {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    background-color: var(--clr-surface);
    position: relative;
    z-index: 5;
    overflow-y: auto; /* Secondary safety, but aimed for none */
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.login-panel::-webkit-scrollbar { display: none; }

@media (min-width: 1024px) {
    .login-panel {
        width: var(--login-panel-width);
        padding: 2rem;
        background-color: white;
    }
}

.login-inner {
    width: 100%;
    max-width: 26rem;
    display: flex;
    flex-direction: column;
    margin: auto;
}

/* Tabs */
.login-tabs {
    display: flex;
    background: var(--clr-surface-container-low);
    padding: 0.25rem;
    border-radius: var(--radius-xl);
    margin-bottom: 1.5rem;
    position: relative;
}

.login-tab {
    flex: 1;
    position: relative;
    padding: 0.6rem;
    font-family: var(--font-headline);
    font-size: 0.8125rem;
    font-weight: 800;
    color: var(--clr-on-surface-variant);
    cursor: pointer;
    background: none;
    border: none;
    z-index: 2;
    transition: var(--login-transition);
}

.login-tab.active { color: var(--clr-primary); }

.login-tab-pill {
    position: absolute;
    top: 0.25rem;
    left: 0.25rem;
    width: calc(50% - 0.25rem);
    height: calc(100% - 0.5rem);
    background: white;
    border-radius: calc(var(--radius-xl) - 0.2rem);
    box-shadow: 0 4px 8px rgba(0,0,0,0.08);
    transition: var(--login-transition);
    z-index: 1;
}

.login-tab.active[data-target="register-form"] ~ .login-tab-pill {
    transform: translateX(100%);
}

/* Forms */
.login-form-container {
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-group {
    margin-bottom: 0.75rem;
}

.form-label {
    display: block;
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--clr-primary);
    margin-bottom: 0.3rem;
    opacity: 0.7;
}

.form-input-box {
    position: relative;
    display: flex;
    align-items: center;
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: var(--radius-lg);
    transition: var(--login-transition);
    background: var(--clr-surface-container-lowest);
}

.form-input-box:focus-within {
    border-color: var(--clr-secondary);
    box-shadow: 0 0 0 3px rgba(119, 90, 25, 0.08);
    background: white;
}

.form-input-box.has-error {
    border-color: #dc2626 !important;
    background: rgba(220, 38, 38, 0.02);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.08);
}

.form-input-box.has-error .icon-left {
    color: #dc2626;
    opacity: 0.6;
}

.error-hint {
    color: #dc2626;
    font-size: 0.65rem;
    font-weight: 700;
    margin-top: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.form-input-box .icon-left {
    position: absolute;
    left: 1rem;
    color: var(--clr-primary);
    opacity: 0.3;
    font-size: 1.1rem;
}

.form-input-box input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    background: transparent;
    border: none;
    outline: none;
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--clr-on-surface);
}

.form-input-box .icon-right {
    position: absolute;
    right: 1rem;
    color: var(--clr-outline-variant);
    cursor: pointer;
    font-size: 1.1rem;
}

/* Buttons */
.btn-primary {
    background: var(--clr-primary);
    color: white;
    padding: 0.875rem;
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    font-weight: 800;
    width: 100%;
    border: none;
    cursor: pointer;
    transition: var(--login-transition);
    box-shadow: 0 8px 16px -4px rgba(3, 25, 53, 0.3);
    margin-top: 0.5rem;
}

.btn-primary:hover {
    background: #062a58;
    transform: translateY(-1px);
}

/* Divider */
.login-divider {
    display: flex;
    align-items: center;
    margin: 1rem 0;
}

.login-divider-line { flex: 1; height: 1px; background: var(--clr-outline-variant); opacity: 0.2; }
.login-divider-text { padding: 0 0.75rem; font-size: 0.65rem; font-weight: 700; color: var(--clr-on-surface-variant); text-transform: uppercase; }

/* OAuth */
.oauth-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.oauth-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0,0,0,0.08);
    background: white;
    cursor: pointer;
    transition: var(--login-transition);
    font-size: 0.8125rem;
    font-weight: 700;
}

.oauth-btn:hover { background: var(--clr-surface-container-low); }

/* Back Button - FIXED to prevent overlap */
.back-fab {
    position: fixed;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 100;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: white;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-primary);
    border: 1px solid rgba(0,0,0,0.05);
}

.back-fab:hover { transform: scale(1.1); color: var(--clr-secondary); }

/* Footer Links */
.login-footer-links {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.login-footer-links a {
    font-size: 0.6rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--clr-on-surface-variant);
    opacity: 0.5;
}

/* Responsive Refinements */
@media (max-width: 1023px) {
    html, body {
        overflow: auto !important;
        height: auto;
    }

    .login-layout {
        height: auto;
        overflow: auto;
    }

    .login-hero {
        height: 25vh;
        min-height: 220px;
        padding: 1.5rem;
    }

    .login-hero-content {
        padding: 0;
        text-align: center;
    }

    .login-hero-content h1 {
        font-size: 2rem;
    }

    .login-hero-content p {
        font-size: 0.875rem;
        margin: 0 auto;
    }

    .login-hero-badge {
        margin-bottom: 0.75rem;
        font-size: 0.55rem;
    }

    .login-panel {
        padding: 2.5rem 1.5rem;
        min-height: 50vh;
    }

    .login-inner {
        max-width: 28rem;
        margin: 0 auto;
    }

    .back-fab {
        top: 1rem;
        right: 1rem;
        width: 2.25rem;
        height: 2.25rem;
    }
}

@media (max-width: 480px) {
    .login-hero {
        height: 20vh;
    }

    .login-hero-content h1 {
        font-size: 1.75rem;
    }

    .login-panel {
        padding: 2rem 1rem;
    }

    .oauth-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .oauth-btn {
        padding: 0.75rem;
    }

    .login-footer-links {
        flex-direction: column;
        align-items: center;
        gap: 0.75rem;
    }
}

/* Hide some elements on very short screens to ensure no scroll */
@media (max-height: 600px) and (min-width: 1024px) {
    .login-divider { margin: 0.5rem 0; }
    .oauth-grid { gap: 0.5rem; }
    .btn-primary { padding: 0.75rem; }
}