/* ===================================
   LOGIN PAGE STYLES
   =================================== */

/* Login Wrapper - Full Page Container */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    padding: 2rem 1rem;
    position: relative;
    overflow: hidden;
}

/* Login Container - Main Card Container */
.login-container {
    display: flex;
    max-width: 480px;
    width: 100%;
    background: var(--card-bg-1);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    position: relative;
    z-index: 1;
    border: 1px solid var(--border-color-1);
}

/* Login Card - Form Section */
.login-card {
    flex: 1;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

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

.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: auto;
    height: 100px;
    margin: 0 auto 1rem;
}

.login-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color-1);
    margin-bottom: 0.5rem;
}

.login-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary-1);
}

/* Login Form */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Error Message */
.error-message {
    background-color: var(--error-bg);
    border: 1px solid var(--error-border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--error-color);
    font-size: 0.9rem;
    animation: slideDown 0.3s ease;
}

.error-message i {
    font-size: 1.1rem;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Form Group */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Input Wrapper */
.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    padding-left: 2.75rem;
    border: 1.5px solid var(--border-color-1);
    border-radius: 8px;
    font-size: 0.95rem;
    color: var(--text-color-1);
    background-color: var(--bg-color-1);
    transition: all 0.3s ease;
    font-family: var(--font-family-1);
}

.form-input::placeholder {
    color: var(--text-secondary-1);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color-1);
    box-shadow: var(--focus-shadow);
}

.form-input:invalid:not(:placeholder-shown) {
    border-color: var(--error-color);
}

.form-input:valid:not(:placeholder-shown) {
    border-color: var(--success-color);
}

/* Input Icon */
.input-icon {
    position: absolute;
    left: 1rem;
    color: var(--text-secondary-1);
    pointer-events: none;
    transition: color 0.3s ease;
}

.form-input:focus ~ .input-icon {
    color: var(--primary-color-1);
}

/* Toggle Password Button */
.toggle-password {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-secondary-1);
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Field Error */
.field-error {
    font-size: 0.8rem;
    color: var(--error-color);
    margin-top: 0.25rem;
    display: none;
}

.field-error.show {
    display: block;
    animation: slideDown 0.3s ease;
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: -0.5rem;
}

/* Custom Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color-1);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    position: relative;
}

.checkbox-label input[type="checkbox"]:checked ~ .checkbox-custom {
    background-color: var(--primary-color-1);
    border-color: var(--primary-color-1);
}

.checkbox-label input[type="checkbox"]:checked ~ .checkbox-custom::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: white;
    font-size: 0.7rem;
}

.checkbox-text {
    font-size: 0.9rem;
    color: var(--text-color-1);
}

/* Forgot Password Link */
.forgot-password {
    font-size: 0.9rem;
    color: var(--primary-color-1);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.forgot-password:hover {
    color: var(--secondary-color-1);
    text-decoration: underline;
}

/* Login Button */
.btn-login {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: var(--primary-color-1);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    margin-top: 0.5rem;
}

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

.btn-login:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Button Loading State */
.btn-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--spinner-border);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===================================
   LOADING OVERLAY (REUSABLE COMPONENT)
   =================================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay-bg);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.loading-spinner {
    text-align: center;
    color: var(--white);
}

.spinner-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color-1);
    margin: 0 auto 1rem;
    animation: pulse 1.5s ease-in-out infinite;
}

.spinner-circle:nth-child(2) {
    animation-delay: 0.3s;
    background: var(--secondary-color-1);
    width: 50px;
    height: 50px;
    margin-top: -50px;
}

.spinner-circle:nth-child(3) {
    animation-delay: 0.6s;
    background: var(--tertiary-color-1);
    width: 40px;
    height: 40px;
    margin-top: -40px;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.7;
    }
}

.loading-text {
    font-size: 1rem;
    font-weight: 500;
    margin-top: 1rem;
    letter-spacing: 0.05em;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

/* Tablet and Below (1024px) */
@media (max-width: 1024px) {
    .login-card {
        padding: 2.5rem 2rem;
    }
}

/* Tablet Portrait (768px) */
@media (max-width: 768px) {
    .login-wrapper {
        padding: 1.5rem 1rem;
    }

    .login-card {
        padding: 2rem 1.5rem;
    }

    .login-title {
        font-size: 1.75rem;
    }

    .login-subtitle {
        font-size: 0.9rem;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
}

/* Mobile Landscape (640px) */
@media (max-width: 640px) {
    .login-container {
        border-radius: 12px;
        box-shadow: var(--shadow-md);
    }

    .login-card {
        padding: 1.5rem 1.25rem;
    }

    .login-logo {
        width: auto;
        height: 80px;
    }

    .login-title {
        font-size: 1.35rem;
    }

    .login-subtitle {
        font-size: 0.85rem;
    }

    .login-form {
        gap: 1.25rem;
    }

    .form-input {
        padding: 0.75rem 1rem;
        padding-left: 2.5rem;
        font-size: 0.9rem;
    }

    .btn-login {
        padding: 0.75rem 1.25rem;
        font-size: 0.95rem;
    }
}

/* Mobile Portrait (480px) */
@media (max-width: 480px) {
    .login-wrapper {
        padding: 1rem 0.75rem;
    }

    .login-card {
        padding: 1.25rem 1rem;
    }

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

    .login-logo {
        width: auto;
        height: 70px;
        margin-bottom: 1rem;
    }

    .login-title {
        font-size: 1.25rem;
    }

    .login-subtitle {
        font-size: 0.8rem;
    }

    .form-label {
        font-size: 0.85rem;
    }

    .form-input {
        padding: 0.7rem 0.875rem;
        padding-left: 2.25rem;
        font-size: 0.875rem;
    }

    .input-icon {
        left: 0.875rem;
        font-size: 0.9rem;
    }

    .toggle-password {
        right: 0.875rem;
        font-size: 0.9rem;
    }

    .checkbox-text {
        font-size: 0.85rem;
    }

    .forgot-password {
        font-size: 0.85rem;
    }

    .btn-login {
        padding: 0.7rem 1rem;
        font-size: 0.9rem;
    }
}

/* Extra Small Mobile (360px) */
@media (max-width: 360px) {
    .login-wrapper {
        padding: 0.75rem 0.5rem;
    }

    .login-container {
        border-radius: 10px;
    }

    .login-card {
        padding: 1rem 0.875rem;
    }

    .login-title {
        font-size: 1.25rem;
    }

    .login-form {
        gap: 1rem;
    }

    .form-group {
        gap: 0.4rem;
    }
}

/* ===================================
   ACCESSIBILITY IMPROVEMENTS
   =================================== */
.form-input:focus-visible,
.btn-login:focus-visible,
.toggle-password:focus-visible,
.forgot-password:focus-visible {
    outline: 2px solid var(--primary-color-1);
    outline-offset: 2px;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}