/* ===================================================================
   LOGIN PAGE - PREMIUM PROFESSIONAL DESIGN
   Ultra-modern authentication experience
   ================================================================= */
@import url('styles.css');

body {
    background: var(--gradient-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    position: relative;
    overflow: hidden;
}

/* Premium animated background with mesh gradient - Corporativo */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle at 20% 80%, rgba(15, 23, 42, 0.2), transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(100, 116, 139, 0.15), transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(15, 23, 42, 0.1), transparent 50%),
        radial-gradient(circle at 60% 70%, rgba(100, 116, 139, 0.12), transparent 50%);
    animation: meshRotate 30s ease-in-out infinite;
    z-index: 0;
}

@keyframes meshRotate {
    0%, 100% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
}

/* Floating particles effect */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px),
        radial-gradient(circle, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
    background-size: 50px 50px, 80px 80px;
    background-position: 0 0, 40px 40px;
    animation: particleFloat 20s linear infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes particleFloat {
    from { transform: translateY(0); }
    to { transform: translateY(-80px); }
}

/* Premium glass-morphism login container - Corporativo */
.login-container {
    background: rgba(255, 255, 255, 0.98); /* Blanco limpio */
    backdrop-filter: saturate(180%) blur(20px);
    border-radius: var(--radius-3xl);
    padding: var(--space-12);
    box-shadow: none;
    border: 1px solid rgba(15, 23, 42, 0.12);
    width: 100%;
    max-width: 460px;
    text-align: center;
    position: relative;
    z-index: 1;
    animation: slideUpFadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
}

/* Subtle shine effect on container */
.login-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 70%
    );
    transform: rotate(45deg);
    animation: shine 3s ease-in-out infinite;
    pointer-events: none;
}

@keyframes slideUpFadeIn {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes shine {
    0%, 100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* Logo section */
.logo {
    margin-bottom: var(--space-10);
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: baseline;
    gap: 4px;
    line-height: 1;
}

/* Marca tipográfica sobre fondo claro (la versión clara vive en dashboard.css) */
.logo .marca-texto {
    font-family: var(--font-sans);
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.035em;
    color: var(--primary);
}
.logo .marca-punto {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--primary);
    opacity: 0.35;
    flex-shrink: 0;
}

.logo img {
    width: 200px;
    height: auto;
    display: block;
}

/* Premium heading with gradient text */
h1 {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-2);
    letter-spacing: var(--tracking-tight);
    line-height: var(--leading-tight);
    position: relative;
    z-index: 1;
}

.subtitle {
    color: var(--text-secondary);
    margin-bottom: var(--space-10);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    line-height: var(--leading-relaxed);
    position: relative;
    z-index: 1;
}

/* Premium form styling */
.form-group {
    margin-bottom: var(--space-6);
    text-align: left;
    position: relative;
    z-index: 1;
}

.form-group label {
    display: block;
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    transition: var(--transition-fast);
}

.input-group {
    position: relative;
}

.input-group i {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: var(--text-lg);
    transition: var(--transition-base);
    z-index: 2;
}

.input-group:focus-within i {
    color: var(--primary-600);
    transform: translateY(-50%) scale(1.1);
}

/* Premium input fields with smooth interactions */
.form-control {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-xl);
    font-size: var(--text-base);
    font-family: var(--font-sans);
    font-weight: var(--font-medium);
    transition: var(--transition-base);
    background: var(--white);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.form-control::placeholder {
    color: var(--text-disabled);
    font-weight: var(--font-normal);
}

.form-control:hover {
    border-color: var(--border-secondary);
    box-shadow: var(--shadow-md);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: none;
    transform: translateY(-2px);
}

.form-control:focus + i {
    color: var(--primary-600);
}

/* Premium button with sophisticated hover effects */
.btn {
    font-family: var(--font-sans);
    width: 100%;
    padding: var(--space-4) var(--space-6);
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-xl);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    cursor: pointer;
    transition: var(--transition-base);
    margin-top: var(--space-2);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    box-shadow: var(--shadow-primary);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    z-index: 1;
}

/* Shimmer effect on button */
.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: left 0.6s ease;
}

.btn:hover {
    box-shadow: none;
}

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

.btn:active {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn:focus {
    outline: none;
    box-shadow: none;
}

/* Premium alert messages with smooth animations */
.alert {
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-6);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    animation: alertSlideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    z-index: 1;
    backdrop-filter: blur(8px);
    box-shadow: var(--shadow-md);
}

@keyframes alertSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.alert-error {
    background: linear-gradient(135deg, var(--error-50) 0%, var(--error-100) 100%);
    color: var(--error-700);
    border: 2px solid var(--error-200);
}

.alert-success {
    background: linear-gradient(135deg, var(--success-50) 0%, var(--success-100) 100%);
    color: var(--success-700);
    border: 2px solid var(--success-200);
}

.alert i {
    font-size: var(--text-xl);
    flex-shrink: 0;
}

/* Elegant forgot password link */
.forgot-password {
    margin-top: var(--space-5);
    text-align: center;
    position: relative;
    z-index: 1;
}

.forgot-password a {
    color: var(--text-link);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    transition: var(--transition-base);
    position: relative;
    display: inline-block;
}

.forgot-password a::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-full);
}

.forgot-password a:hover {
    color: var(--text-link-hover);
}

.forgot-password a:hover::after {
    width: 100%;
}

/* Premium divider with register link */
.register-link {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 2px solid var(--border-primary);
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--text-sm);
    position: relative;
    z-index: 1;
}

.register-link::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.register-link a {
    color: var(--text-link);
    text-decoration: none;
    font-weight: var(--font-bold);
    transition: var(--transition-base);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.register-link a:hover {
    filter: brightness(1.1);
}

/* Premium loading state */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
    cursor: not-allowed;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    top: 50%;
    left: 50%;
    margin-left: -11px;
    margin-top: -11px;
    border: 3px solid rgba(255, 255, 255, 0.25);
    border-top: 3px solid var(--white);
    border-radius: var(--radius-full);
    animation: buttonSpinner 0.7s linear infinite;
}

@keyframes buttonSpinner {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive design for mobile devices */
@media (max-width: 640px) {
    body {
        padding: var(--space-3);
    }

    .login-container {
        padding: var(--space-8) var(--space-6);
        max-width: 100%;
        border-radius: var(--radius-2xl);
    }

    .logo {
        margin-bottom: var(--space-8);
    }

    .logo img {
        width: 160px;
    }

    h1 {
        font-size: var(--text-2xl);
    }

    .subtitle {
        font-size: var(--text-sm);
        margin-bottom: var(--space-8);
    }

    .form-group {
        margin-bottom: var(--space-5);
    }

    .form-control {
        padding: var(--space-3-5);
        font-size: var(--text-sm);
    }

    .btn {
        padding: var(--space-3-5) var(--space-5);
        font-size: var(--text-sm);
    }
}

@media (max-width: 380px) {
    .login-container {
        padding: var(--space-6) var(--space-4);
    }

    h1 {
        font-size: var(--text-xl);
    }

    .logo img {
        width: 140px;
    }
}

/* Browser autofill styling */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0 30px var(--white) inset !important;
    -webkit-text-fill-color: var(--text-primary) !important;
    transition: background-color 5000s ease-in-out 0s;
}

input:-moz-autofill,
input:-moz-autofill:hover,
input:-moz-autofill:focus {
    filter: none;
}

/* Placeholder styling */
::placeholder {
    color: var(--text-disabled);
    opacity: 1;
}

:-ms-input-placeholder {
    color: var(--text-disabled);
}

::-ms-input-placeholder {
    color: var(--text-disabled);
}

/* Accessibility - 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;
    }

    body::before,
    body::after {
        animation: none !important;
    }
}