/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Login Container */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 20px;
}

/* Background Animation */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.floating-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.shape-3 {
    width: 60px;
    height: 60px;
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

.shape-4 {
    width: 100px;
    height: 100px;
    top: 10%;
    right: 30%;
    animation-delay: 1s;
}

.shape-5 {
    width: 40px;
    height: 40px;
    bottom: 40%;
    right: 20%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.7;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 1;
    }
}

/* Login Card */
.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 48px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 420px;
    position: relative;
    z-index: 1;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: slideUp 0.8s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header */
.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.logo-container {
    margin-bottom: 16px;
}

.logo-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
}

.logo-icon i {
    font-size: 28px;
    color: white;
}

.logo-text {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
}

.logo-year {
    font-size: 18px;
    font-weight: 600;
    color: #667eea;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-subtitle {
    color: #666;
    font-size: 16px;
    font-weight: 400;
    margin-top: 8px;
}

/* Form */
.login-form {
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 24px;
}

.input-container {
    position: relative;
    background: #f8f9fa;
    border-radius: 12px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    overflow: hidden;
}

.input-container.focused {
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
    font-size: 16px;
    transition: color 0.3s ease;
}

.input-container.focused .input-icon {
    color: #667eea;
}

.input-container input {
    width: 100%;
    padding: 16px 16px 16px 48px;
    border: none;
    background: transparent;
    font-size: 16px;
    color: #1a1a1a;
    outline: none;
    font-family: inherit;
}

.input-container input::placeholder {
    color: #999;
    font-weight: 400;
}

.password-toggle {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.password-toggle:hover {
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

/* Messages */
.messages {
    margin-bottom: 24px;
}

.message {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.message-error {
    background: #fee;
    color: #d32f2f;
    border: 1px solid #ffcdd2;
}

.message-success {
    background: #e8f5e8;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

.message-info {
    background: #e3f2fd;
    color: #1976d2;
    border: 1px solid #bbdefb;
}

/* Login Button */
.login-btn {
    width: 100%;
    padding: 16px 24px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
}

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

.login-btn.loading {
    background: linear-gradient(135deg, #4caf50, #45a049);
}

.btn-icon {
    transition: transform 0.3s ease;
}

.login-btn:hover .btn-icon {
    transform: translateX(4px);
}

/* Footer */
.login-footer {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid #eee;
}

.footer-text {
    color: #999;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

/* Decorative Elements */
.decorative-elements {
    position: fixed;
    bottom: 40px;
    right: 40px;
    z-index: 0;
}

.tech-dots {
    display: flex;
    gap: 8px;
}

.tech-dots span {
    width: 8px;
    height: 8px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.tech-dots span:nth-child(2) {
    animation-delay: 0.5s;
}

.tech-dots span:nth-child(3) {
    animation-delay: 1s;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

/* Responsive Design */
@media (max-width: 480px) {
    .login-card {
        padding: 32px 24px;
        margin: 20px;
    }
    
    .logo-text {
        font-size: 28px;
    }
    
    .logo-icon {
        width: 56px;
        height: 56px;
    }
    
    .logo-icon i {
        font-size: 24px;
    }
}

/* Loading Animation */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.login-btn.loading .btn-icon {
    animation: spin 1s linear infinite;
}

/* Focus States */
.input-container:focus-within {
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

/* Hover Effects */
.input-container:hover {
    background: #f0f0f0;
}

.input-container.focused:hover {
    background: white;
}