/*
 * ARDO Group - Terminal Aesthetic Stylesheet (v3.0)
 * Absolute Monochromatic Inversion (#000000 / #FFFFFF)
 * Guidelines from ardo-identity SKILL.md
 */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,300..700;1,300..700&family=Inter:wght@300;400;600;700;800;900&display=swap');

:root {
    --bg: #FFFFFF;
    --bg-rgb: 255, 255, 255;
    --text: #000000;
    --text-rgb: 0, 0, 0;
    --border: rgba(0, 0, 0, 0.1);
    --nav-bg: rgba(255, 255, 255, 0.7);
    --dropdown-bg: rgba(255, 255, 255, 0.98);
    
    --font-heading: 'Playfair Display', serif;
    --font-ui: 'Inter', sans-serif;
    
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
}

.dark-mode {
    --bg: #000000;
    --bg-rgb: 0, 0, 0;
    --text: #FFFFFF;
    --text-rgb: 255, 255, 255;
    --border: rgba(255, 255, 255, 0.15);
    --nav-bg: rgba(0, 0, 0, 0.7);
    --dropdown-bg: rgba(10, 10, 10, 0.98);
}

body.dark-mode {
    background-color: #000000 !important;
    color: #FFFFFF !important;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border-radius: 0px !important;
    /* Strict Angularity mandatory per v3.0 */
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-ui);
    height: 100vh;
    overflow: hidden;
    position: relative;
    transition: background-color 0s; /* Avoid half-drawn states in Safari */
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, rgba(var(--text-rgb), 0.05) 1px, transparent 1px);
    background-size: 30px 30px; /* More spaced small grid */
    pointer-events: none;
    z-index: -1;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, rgba(var(--text-rgb), 0.03) 1px, transparent 1px);
    background-size: 120px 120px; /* Extremely spaced large nodes */
    pointer-events: none;
    z-index: -1;
}

.login-container {
    width: 100%;
    max-width: 440px;
    padding: 60px 40px;
    z-index: 10;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid var(--border);
    background: var(--bg);
    backdrop-filter: blur(24px);
    transition: var(--transition-slow);
}

.dark-mode .login-container {
    border-color: rgba(255,255,255,0.1);
    background: rgba(0,0,0,0.4);
}

.brand-section {
    display: flex;
    justify-content: center;
    margin-bottom: 60px;
}

.ardo-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-box {
    border: 2px solid var(--text);
    width: 44px; /* Fixed per SKILL.md */
    height: 44px;
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-ui);
    font-size: 1.1rem;
    font-weight: 900;
    line-height: 1;
    text-transform: uppercase;
    transition: var(--transition-slow);
}

.logo-text {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.logo-title {
    font-family: var(--font-ui);
    font-size: 1.2rem; /* v3.0 spec */
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 2px;
    line-height: 1;
}

.logo-subtitle {
    font-family: var(--font-ui);
    font-size: 0.65rem; /* v3.0 spec */
    font-weight: 600;
    letter-spacing: 4px;
    opacity: 0.5;
    margin-top: 2px;
}

.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-label {
    display: block;
    font-family: var(--font-ui);
    font-size: 0.65rem;
    font-weight: 900;
    text-transform: uppercase;
    color: var(--text);
    margin-bottom: 8px;
    letter-spacing: 0.2em; /* Mandatory tracking */
    opacity: 0.6;
}

.form-control {
    width: 100%;
    background: transparent;
    border: 1px solid var(--border);
    padding: 12px 15px;
    color: var(--text);
    font-family: var(--font-ui);
    font-size: 1rem;
    transition: var(--transition-slow);
    outline: none;
    height: 44px; /* Fixed height for interactives */
}

.form-control:focus {
    border-color: var(--text);
    background: rgba(var(--text), 0.05);
}

.btn-primary {
    width: 100%;
    background: var(--text);
    color: var(--bg);
    border: none;
    padding: 0 20px;
    height: 44px; /* Mandatory 44px */
    font-family: var(--font-ui);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 4px;
    font-weight: 900;
    cursor: pointer;
    transition: var(--transition-slow);
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-primary:hover {
    background: var(--bg);
    color: var(--text);
    box-shadow: inset 0 0 0 1px var(--text);
}

.login-footer {
    margin-top: 40px;
    text-align: center;
    font-size: 0.75rem;
    font-family: var(--font-ui);
}

.footer-top {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border);
}

.copyright {
    color: var(--text);
    opacity: 0.5;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
}

.mode-toggle {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    cursor: pointer;
    height: 44px;
    padding: 0 25px;
    font-size: 0.75rem;
    font-family: var(--font-ui);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 900;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.mode-toggle:hover {
    border-color: var(--text);
    background: rgba(var(--text), 0.05);
}

.icon-sun { display: none; }
.icon-moon { display: block; }

.dark-mode .icon-sun { display: block; }
.dark-mode .icon-moon { display: none; }

.footer-bottom {
    color: var(--text);
    opacity: 0.4;
    font-size: 0.6rem;
    letter-spacing: 4px;
    margin-top: 10px;
    text-transform: uppercase;
    font-weight: 700;
}

.security-badge {
    margin-left: 20px;
    font-size: 0.6rem;
    color: var(--text);
    opacity: 0.5;
    font-weight: 900;
    letter-spacing: 2px;
    border-left: 1px solid var(--border);
    padding-left: 20px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -45%);
    }

    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.login-container {
    animation: fadeIn 1s ease-out forwards;
}