:root {
    --primary-maroon: #8B1538;
    --accent-gold: #C4A962;
    --white: #ffffff;
    --text-dark: #333333;
    --text-light: #666666;
    --error-red: #dc3545;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-lg: rgba(139, 21, 56, 0.2);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #8B1538 0%, #5a0e24 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* Background Decoration */
.background-decoration {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    animation: float 20s infinite ease-in-out;
}

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

.circle-2 {
    width: 200px;
    height: 200px;
    bottom: -50px;
    right: 10%;
    animation-delay: 7s;
}

.circle-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    right: -50px;
    animation-delay: 14s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-30px) scale(1.05);
    }
}

/* Login Container */
.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 450px;
    padding: 2rem;
}

.login-card {
    background: var(--white);
    border-radius: 16px;
    padding: 3rem 2.5rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.5s ease;
}

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

/* Login Header */
.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo {
    display: inline-block;
    margin-bottom: 1.5rem;
    animation: logoFloat 3s infinite ease-in-out;
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.login-header h1 {
    color: var(--primary-maroon);
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Form */
.login-form {
    margin-bottom: 2rem;
}

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

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-dark);
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group label svg {
    color: var(--primary-maroon);
}

.form-group input {
    width: 100%;
    padding: 0.9rem 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background-color: #fafafa;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-maroon);
    background-color: var(--white);
    box-shadow: 0 0 0 4px rgba(139, 21, 56, 0.1);
}

.form-group input::placeholder {
    color: #999;
}

/* Login Button */
.login-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-maroon) 0%, #6d1029 100%);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px var(--shadow-lg);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-lg);
}

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

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

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

.login-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

/* Error Message */
.error-message {
    color: var(--error-red);
    font-size: 0.9rem;
    text-align: center;
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 6px;
    background-color: #fee;
    border: 1px solid #fcc;
    display: none;
    animation: shake 0.5s ease;
}

.error-message:not(:empty) {
    display: block;
}

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

/* Login Footer */
.login-footer {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #e0e0e0;
}

.login-footer p {
    color: var(--text-light);
    font-size: 0.85rem;
}

/* Loading State */
.login-btn.loading .btn-text {
    opacity: 0.7;
}

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

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-container {
        padding: 1.5rem;
        width: 100%;
        max-width: 500px;
    }

    .login-card {
        padding: 2.5rem 2rem;
        border-radius: 14px;
    }

    .login-header {
        margin-bottom: 2rem;
    }

    .logo {
        margin-bottom: 1.25rem;
    }

    .logo svg {
        width: 55px;
        height: 55px;
    }

    .login-header h1 {
        font-size: 1.75rem;
        margin-bottom: 0.4rem;
    }

    .login-header p {
        font-size: 0.9rem;
    }

    .form-group {
        margin-bottom: 1.25rem;
    }

    .form-group label {
        font-size: 0.9rem;
    }

    .form-group input {
        padding: 0.8rem 0.95rem;
        font-size: 1rem;
    }

    .login-btn {
        padding: 0.9rem 1.5rem;
        font-size: 0.95rem;
    }

    .login-footer {
        padding-top: 1.5rem;
        font-size: 0.85rem;
    }

    .error-message {
        font-size: 0.85rem;
        margin-top: 0.75rem;
        padding: 0.6rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 0;
        min-height: 100vh;
    }

    .login-container {
        padding: 1rem;
        width: 100%;
        max-width: 100%;
    }

    .login-card {
        padding: 1.75rem 1.25rem;
        border-radius: 12px;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    }

    .login-header {
        margin-bottom: 1.5rem;
    }

    .logo {
        margin-bottom: 1rem;
    }

    .logo svg {
        width: 48px;
        height: 48px;
    }

    .login-header h1 {
        font-size: 1.4rem;
        font-weight: 700;
        margin-bottom: 0.3rem;
        word-break: break-word;
    }

    .login-header p {
        font-size: 0.85rem;
        margin: 0;
    }

    .login-form {
        margin-bottom: 1.25rem;
    }

    .form-group {
        margin-bottom: 1rem;
    }

    .form-group label {
        font-size: 0.85rem;
        gap: 0.35rem;
        margin-bottom: 0.35rem;
    }

    .form-group label svg {
        width: 18px;
        height: 18px;
    }

    .form-group input {
        padding: 0.75rem 0.875rem;
        font-size: 16px;
        border-radius: 6px;
        border: 2px solid #ddd;
    }

    .form-group input:focus {
        box-shadow: 0 0 0 3px rgba(139, 21, 56, 0.08);
    }

    .login-btn {
        width: 100%;
        padding: 0.8rem 1.25rem;
        font-size: 0.95rem;
        gap: 0.4rem;
        border-radius: 6px;
        box-shadow: 0 3px 10px rgba(139, 21, 56, 0.2);
    }

    .login-btn:hover {
        transform: translateY(-1px);
        box-shadow: 0 4px 14px rgba(139, 21, 56, 0.25);
    }

    .login-btn .btn-text {
        font-weight: 600;
    }

    .login-btn .btn-icon {
        width: 18px;
        height: 18px;
    }

    .error-message {
        font-size: 0.8rem;
        margin-top: 0.6rem;
        padding: 0.5rem 0.75rem;
        border-radius: 6px;
    }

    .login-footer {
        padding-top: 1.25rem;
        border-top: 1px solid #e8e8e8;
    }

    .login-footer p {
        font-size: 0.8rem;
        line-height: 1.4;
        margin: 0;
    }

    /* Background decoration adjustment for mobile */
    .circle {
        display: none;
    }

    .background-decoration {
        background: rgba(139, 21, 56, 0.05);
    }
}

/* Focus Visible for Accessibility */
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary-maroon);
    outline-offset: 2px;
}