:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --border-color: #333;
    /* Fanta Orange */
    --accent-color: #ff9900;
    /* Fanta Green Hint */
    --secondary-accent: #00aa00;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --danger: #ff4444;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: radial-gradient(circle at center, #2a2a2a 0%, #000 100%);
}

.hidden {
    display: none !important;
}

.gradient-text {
    background: linear-gradient(45deg, var(--accent-color), var(--secondary-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Login Screen */
#login-view {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-card {
    background: rgba(30, 30, 30, 0.6);
    backdrop-filter: blur(15px);
    border: 1px solid var(--border-color);
    padding: 4rem;
    border-radius: 24px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
    text-align: center;
}

.login-header h1 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
    font-weight: 800;
}

.login-header p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.form-group input {
    width: 100%;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(255, 153, 0, 0.2);
}

.login-btn {
    width: 100%;
    padding: 1rem;
    background: var(--accent-color);
    color: #000;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.login-btn:hover {
    background: #ffaa33;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 153, 0, 0.3);
}

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

.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 0, 0, 0.3);
    border-radius: 50%;
    border-top-color: #000;
    animation: spin 1s ease-in-out infinite;
    vertical-align: middle;
    margin-right: 8px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes shake {
    0% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    50% {
        transform: translateX(5px);
    }

    75% {
        transform: translateX(-5px);
    }

    100% {
        transform: translateX(0);
    }
}

.shake {
    animation: shake 0.3s ease-in-out;
}

.success-message {
    color: var(--secondary-accent);
    margin-top: 1rem;
    font-weight: 600;
    background: rgba(0, 170, 0, 0.1);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--secondary-accent);
}

/* Header & Footer */
.main-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    color: #fff;
    cursor: pointer;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 2rem;
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--accent-color);
}

.main-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(0, 0, 0, 0.2);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.8rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    margin-left: 1.5rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text-primary);
}

/* 404 Page */
.error-container {
    text-align: center;
}

.error-code {
    font-size: 8rem;
    font-weight: 900;
    background: linear-gradient(45deg, var(--accent-color), var(--secondary-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0;
    line-height: 1;
}

.error-msg {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.home-btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.2s;
}

.home-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}