/* Root variables for styling variables */
:root {
    --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --bg-dark: #09090b;
    --card-bg: rgba(20, 20, 25, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    
    --primary-color: #6366f1; /* Indigo */
    --primary-hover: #4f46e5;
    --accent-glow: rgba(99, 102, 241, 0.15);
    
    --danger-color: #ef4444;
    --success-color: #22c55e;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

/* Background animated decorative circles */
.background-decor {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
    pointer-events: none;
}

.circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.circle-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #6366f1, #3b82f6);
    top: -50px;
    left: -50px;
    animation: float1 15s ease-in-out infinite alternate;
}

.circle-2 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #a855f7, #ec4899);
    bottom: -80px;
    right: -80px;
    animation: float2 18s ease-in-out infinite alternate;
}

@keyframes float1 {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(40px, 30px) scale(1.1); }
}

@keyframes float2 {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-30px, -40px) scale(1.15); }
}

/* Glassmorphic Login Container */
.login-container {
    width: 100%;
    max-width: 440px;
    padding: 40px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    z-index: 10;
    position: relative;
}

/* Language selector */
.lang-selector {
    position: absolute;
    top: 20px;
    right: 20px;
}

.lang-selector button {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 30px;
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.25s ease;
}

.lang-selector button:hover {
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
}

/* Header */
.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), #4f46e5);
    border-radius: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 16px;
    font-size: 28px;
    color: white;
    box-shadow: 0 8px 16px var(--accent-glow);
}

.login-header h1 {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 6px;
    background: linear-gradient(135deg, #ffffff, #d4d4d8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Form inputs styling */
.input-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.input-icon {
    position: absolute;
    left: 16px;
    color: var(--text-secondary);
    font-size: 16px;
    pointer-events: none;
}

.input-wrapper input {
    width: 100%;
    padding: 14px 16px 14px 48px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 15px;
    transition: all 0.3s ease;
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.02);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

.password-toggle {
    position: absolute;
    right: 16px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

/* Submit button */
.btn {
    width: 100%;
    padding: 14px;
    font-family: var(--font-primary);
    font-size: 15px;
    font-weight: 600;
    border-radius: 14px;
    cursor: pointer;
    border: none;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px var(--accent-glow);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(1px);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    border: 1px solid transparent;
}

.alert-danger {
    background: rgba(239, 68, 110, 0.1);
    border-color: rgba(239, 68, 110, 0.2);
    color: #fca5a5;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.2);
    color: #86efac;
}

.hidden {
    display: none !important;
}

/* Responsive adjustment */
@media (max-width: 480px) {
    .login-container {
        padding: 30px 20px;
        border-radius: 0;
        height: 100vh;
        max-width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        border: none;
    }
    .background-decor {
        display: none;
    }
}