/* ===================================
   ILUCENT RECORD SYSTEM - MODERN LOGIN
   Professional & Elegant Design
   =================================== */

/* === CSS Variables === */
:root {
    /* Brand Colors */
    --primary: #17594a;
    --primary-dark: #0f3d31;
    --primary-light: #1f7560;
    --secondary: #d4af37;

    /* Neutral Colors */
    --white: #ffffff;
    --black: #1a1a1a;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-400: #bdbdbd;
    --gray-500: #9e9e9e;
    --gray-600: #757575;
    --gray-700: #616161;
    --gray-800: #424242;
    --gray-900: #212121;

    /* Semantic Colors */
    --error: #ef4444;
    --error-light: #fee2e2;
    --success: #22c55e;
    --warning: #f59e0b;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #17594a 0%, #0f3d31 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(23, 89, 74, 0.95) 0%, rgba(15, 61, 49, 0.98) 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Transitions */
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-100);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* === Background Styling === */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
    z-index: -2;
}

.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(212, 175, 55, 0.08) 0%, transparent 50%);
    z-index: -1;
}

/* === Login Container === */
.login-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    animation: fadeIn 0.6s ease-out;
}

/* === Login Card === */
.login-card {
    width: 100%;
    max-width: 440px;
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-2xl);
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

/* === Brand Header === */
.brand-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.brand-logo-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 200px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    animation: scaleIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.brand-logo {
    width: 160px;
    height: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.brand-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.brand-subtitle {
    font-size: 14px;
    color: var(--gray-600);
    font-weight: 500;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

/* === Alert === */
.alert {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: 14px;
    animation: slideDown 0.4s ease-out;
}

.alert-error {
    background: var(--error-light);
    color: var(--error);
    border: 1px solid var(--error);
}

.alert-icon {
    font-size: 20px;
}

/* === Form Styles === */
.login-form {
    animation: fadeInUp 0.6s ease-out 0.5s both;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-xs);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    transition: var(--transition-base);
}

.input-icon {
    position: absolute;
    left: var(--spacing-md);
    color: var(--gray-400);
    font-size: 20px;
    pointer-events: none;
    transition: var(--transition-base);
}

.input-wrapper.focused .input-icon {
    color: var(--primary);
}

.form-input {
    width: 100%;
    padding: 14px 16px 14px 48px;
    font-size: 15px;
    font-family: inherit;
    color: var(--gray-800);
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    outline: none;
    transition: var(--transition-base);
}

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

.form-input:focus {
    background: var(--white);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(23, 89, 74, 0.1);
}

.form-input:hover:not(:focus) {
    border-color: var(--gray-300);
}

.toggle-password {
    position: absolute;
    right: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.toggle-password:hover {
    color: var(--gray-600);
    background: var(--gray-100);
}

.toggle-password .material-icons {
    font-size: 20px;
}

/* === Form Options === */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    font-size: 14px;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.checkbox-wrapper input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: var(--spacing-xs);
    cursor: pointer;
    accent-color: var(--primary);
}

.checkbox-label {
    color: var(--gray-700);
    font-weight: 500;
}

.forgot-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-base);
}

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

/* === Login Button === */
.btn-login {
    width: 100%;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-login:hover::before {
    left: 100%;
}

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

.btn-login:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-login .material-icons {
    font-size: 20px;
    transition: transform 0.3s;
}

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

/* === Card Footer === */
.login-card-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    text-align: center;
}

.login-card-footer p {
    font-size: 13px;
    color: var(--gray-500);
    font-weight: 500;
}

/* === Copyright === */
.copyright {
    margin-top: var(--spacing-lg);
    text-align: center;
    animation: fadeIn 1s ease-out 0.8s both;
}

.copyright p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 400;
}

/* === Animations === */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* === Responsive Design === */
@media (max-width: 640px) {
    .login-container {
        padding: var(--spacing-md);
    }

    .login-card {
        padding: var(--spacing-xl);
        border-radius: var(--radius-lg);
    }

    .brand-logo-wrapper {
        width: 72px;
        height: 72px;
    }

    .brand-logo {
        width: 48px;
        height: 48px;
    }

    .brand-title {
        font-size: 21px;
    }

    .brand-subtitle {
        font-size: 13px;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 400px) {
    .login-card {
        padding: var(--spacing-lg);
    }

    .brand-title {
        font-size: 19px;
    }
}

/* === High Contrast Mode Support === */
@media (prefers-contrast: high) {
    .form-input {
        border-width: 2px;
    }

    .btn-login {
        border: 2px solid var(--white);
    }
}

/* === Reduced Motion Support === */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* === Dark Mode Support (Optional) === */
@media (prefers-color-scheme: dark) {
    /* Future dark mode implementation */
}