:root {
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --accent-color: #58a6ff;
    --error-color: #f85149;
    --robot-color: #f0f6fc;
    --robot-stroke: #30363d;
    --input-bg: #0d1117;
    --input-border: #30363d;
}

body {
    margin: 0;
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
    /* Prevent scrollbar jumping with error message */
}

.container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    /* Glassmorphism effect */
    background: rgba(22, 27, 34, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

header h1 {
    font-weight: 300;
    letter-spacing: 1px;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--text-primary);
    font-size: 1.5rem;
    text-transform: uppercase;
    background: linear-gradient(90deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Robot Styles */
.robot-container {
    margin-bottom: 2rem;
    filter: drop-shadow(0 0 10px rgba(88, 166, 255, 0.2));
}

.robot-head {
    fill: var(--card-bg);
    stroke: var(--accent-color);
    stroke-width: 3;
}

.robot-antenna-stem {
    stroke: var(--accent-color);
    stroke-width: 3;
}

.robot-antenna-ball {
    fill: var(--error-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        fill-opacity: 0.6;
    }

    50% {
        fill-opacity: 1;
        filter: drop-shadow(0 0 5px var(--error-color));
    }

    100% {
        fill-opacity: 0.6;
    }
}

.eye-bg {
    fill: #000;
}

.pupil {
    fill: var(--accent-color);
    transition: transform 0.1s ease-out;
}

.eyelid {
    fill: var(--card-bg);
    transition: height 0.2s ease-in-out;
}

/* Form Styles */
.auth-form {
    width: 100%;
}

.input-group {
    margin-bottom: 1.5rem;
    position: relative;
    display: flex;
    flex-direction: column;
}

label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

input {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    padding: 0.8rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

.error-message {
    color: var(--error-color);
    font-size: 0.8rem;
    margin-top: 0.4rem;
    opacity: 0;
    transform: translateY(-5px);
    transition: all 0.2s;
    height: 0;
    pointer-events: none;
}

.error-message.visible {
    opacity: 1;
    transform: translateY(0);
    height: auto;
}

.login-btn {
    width: 100%;
    padding: 0.9rem;
    background: linear-gradient(135deg, var(--accent-color), #1f6feb);
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.2s;
    margin-top: 0.5rem;
}

.login-btn:hover {
    box-shadow: 0 4px 12px rgba(88, 166, 255, 0.4);
    transform: translateY(-1px);
}

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

.login-btn.loading {
    opacity: 0.7;
    cursor: wait;
}