:root {
    --primary: #bf0000;
    --primary-dark: #8c0000;
    --primary-light: #ff3333;
    --accent: #1a1a1a;
    --accent-light: #333333;
    --bg-gradient: linear-gradient(135deg, #0f0f10 0%, #1c1c1e 100%);
    --card-bg: rgba(30, 30, 32, 0.65);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-main: #f5f5f7;
    --text-muted: #8e8e93;
    --white: #ffffff;
    --error-bg: rgba(255, 59, 48, 0.15);
    --error-border: rgba(255, 59, 48, 0.3);
    --error-text: #ff453a;
    
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.4);
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-gradient);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 1.5rem;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Background elements for depth */
.bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(191, 0, 0, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
    top: -100px;
    right: -100px;
    z-index: 1;
    pointer-events: none;
}

.bg-glow-2 {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.03) 0%, rgba(0, 0, 0, 0) 70%);
    bottom: -100px;
    left: -100px;
    z-index: 1;
    pointer-events: none;
}

/* Container */
.login-container {
    position: relative;
    width: 100%;
    max-width: 440px;
    z-index: 10;
}

/* Logo and Header */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-link {
    display: inline-block;
    margin-bottom: 1rem;
    text-decoration: none;
    transition: var(--transition);
}

.logo-link:hover {
    transform: scale(1.02);
}

.logo-text {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 2px;
}

.logo-text span {
    color: var(--primary);
}

.login-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
}

.login-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Login Card */
.login-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-xl);
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: 0.5rem;
    letter-spacing: 0.5px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    color: var(--text-muted);
    font-size: 1rem;
    pointer-events: none;
    transition: var(--transition);
}

.form-input {
    width: 100%;
    padding: 0.85rem 1rem 0.85rem 2.75rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    color: var(--white);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(0, 0, 0, 0.3);
    box-shadow: 0 0 0 3px rgba(191, 0, 0, 0.2);
}

.form-input:focus + .input-icon {
    color: var(--primary);
}

/* Password Toggle Icon */
.password-toggle {
    position: absolute;
    right: 1rem;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
    user-select: none;
}

.password-toggle:hover {
    color: var(--white);
}

/* Error Message */
.error-alert {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem;
    color: var(--error-text);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Button */
.login-btn {
    width: 100%;
    padding: 0.9rem;
    background: var(--primary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    transition: var(--transition);
}

.login-btn:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(191, 0, 0, 0.3);
}

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

/* Footer Link */
.back-link-container {
    text-align: center;
    margin-top: 1.5rem;
}

.back-link {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--white);
}

/* Copyright */
.login-footer {
    text-align: center;
    margin-top: 3rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}