/**
 * Blacktech Shelfflow - Login Page Styles
 * Refactored for a sleek, dark-mode premium aesthetic
 */

/* Root tokens mapped to dark-theme slate variables */
:root {
    --bg-deep: #0b0f19;          /* Premium dark canvas */
    --card-bg: #111827;          /* Tailwind Slate 900 */
    --card-border: #1f2937;      /* Slate 800 */
    --input-bg: #1f2937;
    --input-border: #374151;      /* Slate 700 */
    --input-focus-bg: #111827;
    --accent-blue: #3b82f6;       /* Vibrant identity primary */
    --accent-hover: #2563eb;
    --text-main: #ffffff;
    --text-muted: #9ca3af;       /* Slate 400 */
}

/* Login page body context */
body.login-page {
    background-color: var(--bg-deep);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Base structural layout overrides from Bootstrap */
.login-container {
    z-index: 5;
    position: relative;
}

/* Glassmorphic Dark Portal Card */
.login-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
    padding: 2rem;
}

/* Sleek top ambient light indicator */
.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), #9333ea);
    /* padding: 2rem; */
}

/* Centered Brand Container */
.brand-logo {
    max-width: 140px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-logo .logo-img {
    /* width: 100%;
    height: auto; */
    width: 700px;
    /* height: 300px; */
    padding: 10px;
    margin: 10px;
    object-fit: contain;
}

/* Subtitle tracking refinements */
.login-subtitle {
    letter-spacing: 1.5px;
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Form-Floating Input Architecture Optimization */
.login-page .form-floating .form-control {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-main);
    border-radius: 8px;
    padding: 1.5rem 1rem 0.5rem;
    height: calc(3.5rem + 2px);
    transition: all 0.2s ease-in-out;
}

/* Focus Overrides */
.login-page .form-floating .form-control:focus {
    background-color: var(--input-focus-bg);
    border-color: var(--accent-blue);
    color: var(--text-main);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

/* Input Floating Labels alignment */
.login-page .form-floating > label {
    color: var(--text-muted);
    padding: 1rem 1rem;
    font-weight: 400;
    transition: transform 0.2s ease, color 0.2s ease;
}

/* Label transformation logic when focused or content exists */
.login-page .form-floating > .form-control:focus ~ label,
.login-page .form-floating > .form-control:not(:placeholder-shown) ~ label {
    color: var(--accent-blue);
    background-color: var(--card-bg);
    padding: 0 6px;
    transform: scale(0.8) translateY(-0.6rem) translateX(0.6rem);
    height: auto;
}

/* Strip native background overlays on label transformation */
.login-page .form-floating .form-control:focus ~ label::after,
.login-page .form-floating .form-control:not(:placeholder-shown) ~ label::after {
    background-color: transparent !important;
    box-shadow: none !important;
}

/* Show / hide password control */
.password-field-wrap > .form-control {
    padding-right: 2.75rem;
}

.login-page .password-field-wrap > label {
    width: auto;
    max-width: calc(100% - 2.75rem);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.password-field-wrap input::-ms-reveal,
.password-field-wrap input::-ms-clear {
    display: none;
}

.password-toggle {
    position: absolute;
    top: 0;
    right: 0.35rem;
    height: calc(3.5rem + 2px);
    width: 2.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0;
    z-index: 3;
    cursor: pointer;
}

.password-toggle:hover,
.password-toggle:focus-visible {
    color: var(--text-main);
}

.password-toggle:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: -4px;
    border-radius: 6px;
}

/* High-Contrast Stark Action Control Button */
.login-btn {
    background-color: var(--text-main) !important;
    color: var(--bg-deep) !important;
    border: none;
    border-radius: 8px;
    transition: all 0.2s ease-in-out;
}

.login-btn:hover {
    background-color: #e5e7eb !important;
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.login-btn:active {
    transform: translateY(0);
}

/* Link Context Overrides */
.forget-password-link {
    color: var(--accent-blue);
    transition: color 0.2s ease;
}

.forget-password-link:hover {
    color: #60a5fa;
    text-decoration: underline !important;
}

/* Ambient Floating Background Components */
.floating-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.shape {
    position: absolute;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.04) 0%, rgba(147, 51, 234, 0.02) 100%);
    border-radius: 50%;
    animation: float-animation 8s ease-in-out infinite;
}

.shape:nth-child(1) {
    width: 450px;
    height: 450px;
    top: -10%;
    left: -10%;
    animation-delay: 0s;
}

.shape:nth-child(2) {
    width: 550px;
    height: 550px;
    bottom: -15%;
    right: -5%;
    animation-delay: 2s;
}

.shape:nth-child(3) {
    width: 320px;
    height: 320px;
    top: 35%;
    left: 75%;
    animation-delay: 4s;
}

@keyframes float-animation {
    0%, 100% { 
        transform: translateY(0px) scale(1); 
    }
    50% { 
        transform: translateY(-30px) scale(1.05); 
    }
}

/* Custom Checkbox Alignment */
.form-check-input {
    background-color: var(--input-bg);
    border-color: var(--input-border);
}

.form-check-input:checked {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
}

/* Mobile Layout Adaptation */
@media (max-width: 576px) {
    .login-card {
        padding: 2rem 1.5rem;
        margin: 1.25rem;
    }
}