/* RSI Brand Colors & Variables */
:root {
    --rsi-green: #146d18;
    --rsi-green-dark: #0f5513;
    --rsi-green-light: #1a8b20;
    --rsi-yellow: #d5b915;
    --rsi-yellow-dark: #b89f12;
    --rsi-yellow-light: #e5d247;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --danger: #dc2626;
    --success: #10b981;
}

/* Clean White Background */
body {
    background: var(--white) !important;
}

/* Subtle Background Pattern */
.login-bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(
            circle at 20% 50%,
            rgba(20, 109, 24, 0.03) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 80% 80%,
            rgba(213, 185, 21, 0.03) 0%,
            transparent 50%
        );
    z-index: 0;
    pointer-events: none;
}

/* Modern Card */
.login-card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 10px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    position: relative;
    z-index: 1;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header with Brand Colors */
.login-header {
    background: linear-gradient(
        135deg,
        var(--rsi-green) 0%,
        var(--rsi-green-dark) 100%
    );
    padding: 2rem 2rem 1.75rem;
    text-align: center;
    position: relative;
}

.login-header::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -10%;
    width: 200px;
    height: 200px;
    background: radial-gradient(
        circle,
        rgba(213, 185, 21, 0.2) 0%,
        transparent 70%
    );
    border-radius: 50%;
}

.login-header-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
    border: 3px solid rgba(255, 255, 255, 0.2);
    position: relative;
    z-index: 1;
}

.login-header-icon i {
    font-size: 1.75rem;
    color: var(--rsi-yellow);
}

.login-header h4 {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 0.35rem;
    position: relative;
    z-index: 1;
}

.login-header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
    margin: 0;
    position: relative;
    z-index: 1;
}

/* Body */
.login-body {
    padding: 2rem 2.5rem 2rem;
}

/* Form Group */
.form-group-modern {
    margin-bottom: 1.25rem;
}

.form-group-modern label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    display: block;
    font-size: 0.875rem;
}

/* Input Container */
.input-container {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    transition: color 0.3s ease;
    z-index: 2;
}

/* Modern Input */
.input-modern {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 3rem;
    border: 2px solid var(--gray-200);
    border-radius: 10px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background: var(--white);
    color: var(--gray-800);
}

.input-modern::placeholder {
    color: var(--gray-400);
}

.input-modern:focus {
    outline: none;
    border-color: var(--rsi-green);
    box-shadow: 0 0 0 3px rgba(20, 109, 24, 0.1);
}

.input-modern:focus ~ .input-icon {
    color: var(--rsi-green);
}

.input-modern.is-invalid {
    border-color: var(--danger);
    background: #fef2f2;
}

.input-modern.is-valid {
    border-color: var(--success);
    background: #f0fdf4;
}

/* Password Toggle */
.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--gray-400);
    transition: color 0.3s ease;
    z-index: 2;
    padding: 0.25rem;
}

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

/* Remember Me */
.remember-container {
    display: flex;
    align-items: center;
    margin-top: 0.75rem;
}

.checkbox-modern {
    width: 17px;
    height: 17px;
    margin-right: 0.5rem;
    cursor: pointer;
    accent-color: var(--rsi-green);
}

.remember-label {
    font-size: 0.85rem;
    color: var(--gray-600);
    cursor: pointer;
    user-select: none;
}

/* Submit Button */
.btn-modern {
    width: 100%;
    padding: 0.875rem 1rem;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    background: linear-gradient(
        135deg,
        var(--rsi-green) 0%,
        var(--rsi-green-dark) 100%
    );
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(20, 109, 24, 0.2);
    position: relative;
    overflow: hidden;
}

.btn-modern::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.5s, height 0.5s;
}

.btn-modern:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(20, 109, 24, 0.3);
}

.btn-modern:hover::before {
    width: 300px;
    height: 300px;
}

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

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

.btn-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* Loading State */
.btn-loading .btn-content {
    opacity: 0;
}

.btn-loading::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* Alert */
.alert-modern {
    padding: 0.875rem;
    border-radius: 10px;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: flex-start;
    animation: slideDown 0.3s ease-out;
    border-left: 4px solid;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-danger {
    background: #fef2f2;
    color: #991b1b;
    border-color: var(--danger);
}

.alert-icon {
    margin-right: 0.75rem;
    font-size: 1.25rem;
    flex-shrink: 0;
}

/* Invalid Feedback */
.invalid-feedback-modern {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .login-card {
        border-radius: 12px;
    }

    .login-header {
        padding: 1.75rem 1.5rem 1.5rem;
    }

    .login-header-icon {
        width: 55px;
        height: 55px;
        margin-bottom: 0.65rem;
    }

    .login-header-icon i {
        font-size: 1.5rem;
    }

    .login-header h4 {
        font-size: 1.35rem;
    }

    .login-header p {
        font-size: 0.8rem;
    }

    .login-body {
        padding: 1.75rem 1.5rem;
    }

    .input-modern {
        padding: 0.7rem 1rem 0.7rem 2.85rem;
        font-size: 0.9rem;
    }

    .form-group-modern {
        margin-bottom: 1.15rem;
    }

    .btn-modern {
        padding: 0.8rem 1rem;
        font-size: 0.95rem;
    }
}

@media (min-width: 992px) {
    .login-header {
        padding: 2.25rem 2.5rem 2rem;
    }

    .login-body {
        padding: 2.25rem 3rem 2.25rem;
    }

    .login-header-icon {
        width: 65px;
        height: 65px;
    }

    .login-header-icon i {
        font-size: 1.85rem;
    }

    .login-header h4 {
        font-size: 1.65rem;
    }

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

    .form-group-modern {
        margin-bottom: 1.35rem;
    }
}

/* Logo Animation */
.login-brand {
    animation: fadeIn 0.6s ease-out;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Footer */
.simple-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--gray-500);
    font-size: 0.85rem;
    animation: fadeIn 0.8s ease-out 0.3s both;
}