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

:root {
    --primary-color: #FF6B35;
    --primary-dark: #E85A28;
    --primary-light: #FF8C61;
    --secondary-color: #2C3E50;
    --text-dark: #2C3E50;
    --text-light: #7F8C8D;
    --background: #FFFFFF;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #FFF5F2 0%, #FFE8E0 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.background-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 107, 53, 0.05));
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    bottom: -50px;
    right: 10%;
    animation-delay: 5s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    right: -50px;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-30px) rotate(180deg);
    }
}

.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 440px;
    padding: 20px;
}

.login-box {
    background: var(--background);
    border-radius: var(--border-radius);
    padding: 48px 40px;
    box-shadow: var(--shadow-lg);
    position: relative;
    backdrop-filter: blur(10px);
}

.logo-container {
    text-align: center;
    margin-bottom: 32px;
}

.logo {
    max-width: 180px;
    height: auto;
    animation: fadeInDown 0.6s ease-out;
}

.login-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 8px;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.login-subtitle {
    font-size: 14px;
    color: var(--text-light);
    text-align: center;
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.login-form {
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.form-group {
    margin-bottom: 20px;
}

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

.input-icon i {
    position: absolute;
    left: 16px;
    color: var(--text-light);
    font-size: 16px;
    transition: var(--transition);
}

.input-icon input {
    width: 100%;
    padding: 14px 48px 14px 48px;
    border: 2px solid #E8ECEF;
    border-radius: 10px;
    font-size: 15px;
    font-family: 'Inter', sans-serif;
    transition: var(--transition);
    background: #F8FAFB;
}

.input-icon input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: #FFFFFF;
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
}

.input-icon input:focus + i,
.input-icon input:focus ~ i {
    color: var(--primary-color);
}

.toggle-password {
    position: absolute;
    right: 16px;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
}

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

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 14px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-dark);
}

.remember-me input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.forgot-password {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.forgot-password:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

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

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.error-message {
    margin-top: 16px;
    padding: 12px 16px;
    background: #FEE;
    border-left: 4px solid #E74C3C;
    border-radius: 8px;
    color: #C0392B;
    font-size: 14px;
    animation: shake 0.5s;
}

.login-footer {
    margin-top: 32px;
    text-align: center;
    font-size: 13px;
    color: var(--text-light);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

/* Responsive */
@media (max-width: 480px) {
    .login-container {
        padding: 16px;
    }
    
    .login-box {
        padding: 32px 24px;
    }
    
    .login-title {
        font-size: 24px;
    }
    
    .form-options {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
}