/* ===================================
   ROBODRAW.AI — LOGIN PAGE
   Dark Workshop Theme — Centered Card
   =================================== */

:root {
    --bg-workspace: #1C1A17;
    --paper-surface: #F5F0E8;
    --paper-shadow: #E8DFD0;
    --accent-primary: #D4622B;
    --accent-brass: #C19A5B;
    --highlight: #F2C744;
    --text-on-light: #2B2520;
    --text-secondary: #8A7E72;
    --text-on-dark: #EDE8E0;
    --color-error: #A03020;
    --color-success: #4A7C59;

    --font-display: 'Playfair Display', Georgia, serif;
    --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
    --font-hand: 'Caveat', cursive;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 40px;
}

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

body {
    font-family: var(--font-mono);
    background: var(--bg-workspace);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-on-dark);
    background-image:
        radial-gradient(ellipse 80% 60% at 50% 40%, rgba(194, 154, 91, 0.07) 0%, transparent 70%),
        url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: var(--space-lg);
}

.login-card {
    background: rgba(28, 26, 23, 0.6);
    border: 1px solid rgba(193, 154, 91, 0.25);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(193, 154, 91, 0.1);
    animation: fadeUp 0.5s ease-out;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.login-header h1 {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 900;
    font-size: 2.4rem;
    color: var(--paper-surface);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    margin-bottom: var(--space-sm);
}

.login-header .subtitle {
    font-family: var(--font-hand);
    font-size: 1.4rem;
    color: var(--accent-brass);
    letter-spacing: 0.02em;
}

/* Error Message */
.error-message {
    background: rgba(160, 48, 32, 0.12);
    border-left: 3px solid var(--color-error);
    color: var(--color-error);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: var(--space-lg);
    animation: shake 0.4s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

/* Form */
.login-form .input-group {
    margin-bottom: var(--space-md);
}

.login-form label {
    display: block;
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
}

.login-form input {
    width: 100%;
    padding: 12px 14px;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    border: 1px solid rgba(193, 154, 91, 0.3);
    border-radius: var(--radius-sm);
    background: var(--paper-surface);
    color: var(--text-on-light);
    transition: all 0.25s ease;
}

.login-form input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(212, 98, 43, 0.15);
}

.login-form .btn-login {
    width: 100%;
    padding: 14px 28px;
    margin-top: var(--space-lg);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: var(--accent-primary);
    color: var(--paper-surface);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.25s ease;
    box-shadow:
        0 3px 0 #9A3E12,
        0 4px 12px rgba(0, 0, 0, 0.3);
}

.login-form .btn-login:hover {
    transform: translateY(-2px);
    box-shadow:
        0 5px 0 #9A3E12,
        0 8px 20px rgba(0, 0, 0, 0.4);
}

.login-form .btn-login:active {
    transform: translateY(1px);
    box-shadow:
        0 1px 0 #9A3E12,
        0 2px 6px rgba(0, 0, 0, 0.3);
}

/* Back Link */
.login-footer {
    text-align: center;
    margin-top: var(--space-lg);
}

.login-footer a {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.25s ease;
}

.login-footer a:hover {
    color: var(--accent-brass);
}