/* ========================================
   ŠUTĒRU AUTHENTICATION STYLES
   Login, register, and form interfaces
======================================== */

/* Modern Auth Container */
.auth-modern-container {
    min-height: 100vh;
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    position: relative;
    overflow: hidden;
}

/* Floating Background Elements */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.floating-shape {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: floatAround 20s infinite linear;
}

.floating-shape:nth-child(1) {
    width: 120px;
    height: 120px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.floating-shape:nth-child(2) {
    width: 80px;
    height: 80px;
    top: 60%;
    right: 10%;
    animation-delay: -7s;
}

.floating-shape:nth-child(3) {
    width: 60px;
    height: 60px;
    bottom: 20%;
    left: 20%;
    animation-delay: -14s;
}

@keyframes floatAround {
    0% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-25px) rotate(120deg); }
    66% { transform: translateY(10px) rotate(240deg); }
    100% { transform: translateY(0px) rotate(360deg); }
}

@keyframes slideInUp {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
    }
}

/* Modern Auth Card */
.auth-card-modern {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    width: 100%;
    max-width: 480px;
    box-shadow: var(--shadow-2xl), var(--shadow-colored);
    position: relative;
    z-index: 2;
    animation: slideInUp 0.8s ease-out;
    transition: all var(--transition-base);
}

.auth-card-modern:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-2xl), 0 20px 40px -8px rgba(59, 130, 246, 0.2);
}

.auth-card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-card);
    border-radius: var(--radius-2xl);
    z-index: -1;
}

/* Auth Header */
.auth-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.auth-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-4);
    filter: brightness(0) invert(1);
}

.auth-title {
    font-size: var(--text-4xl);
    font-weight: 900;
    color: white;
    margin-bottom: var(--space-3);
    text-shadow: 
        0 2px 4px rgba(0,0,0,0.3),
        0 0 20px rgba(59, 130, 246, 0.3);
    background: linear-gradient(135deg, #ffffff 0%, #e0f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.025em;
}

.auth-subtitle {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    font-weight: 400;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

/* Enhanced Form System */
.form-modern {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group {
  margin-bottom: var(--space-6);
  position: relative;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--text-inverse);
  margin-bottom: var(--space-3);
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.form-control {
  width: 100%;
  padding: var(--space-4) var(--space-4);
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.95);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  box-shadow: 
    var(--shadow-sm),
    inset 0 1px 3px rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(8px);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-400);
  box-shadow: 
    0 0 0 4px rgba(59, 130, 246, 0.15),
    var(--shadow-lg),
    inset 0 1px 3px rgba(0, 0, 0, 0.05);
  background: rgba(255, 255, 255, 0.98);
  transform: translateY(-1px);
}

.form-control:hover {
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 
    var(--shadow-md),
    inset 0 1px 3px rgba(0, 0, 0, 0.05);
}

.form-control::placeholder {
  color: var(--gray-500);
  font-style: italic;
}

.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: var(--space-4);
  color: var(--gray-400);
  z-index: 1;
  font-size: var(--text-lg);
  transition: all var(--transition-base);
}

.input-group .form-control {
  padding-left: calc(var(--space-10) + var(--space-2));
}

.input-group .form-control:focus + .input-icon {
  color: var(--primary-500);
  transform: scale(1.05);
}

/* Form Validation States */
.form-control.is-valid {
  border-color: var(--success-500);
  background: rgba(240, 253, 244, 0.9);
}

.form-control.is-invalid {
  border-color: var(--error-500);
  background: rgba(254, 242, 242, 0.9);
}

.valid-feedback,
.invalid-feedback {
  display: block;
  font-size: var(--text-sm);
  margin-top: var(--space-2);
  font-weight: 500;
}

.valid-feedback {
  color: var(--success-600);
}

.invalid-feedback {
  color: var(--error-600);
}

/* Auth Buttons */
.auth-btn {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-xl);
    font-weight: 700;
    font-size: var(--text-base);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.auth-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;
}

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

.auth-btn-primary {
    background: var(--gradient-button);
    color: white;
    box-shadow: var(--shadow-lg), var(--shadow-colored);
    border: 2px solid transparent;
}

.auth-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 
        var(--shadow-xl), 
        0 15px 35px -8px rgba(59, 130, 246, 0.3);
    color: white;
    scale: 1.02;
}

.auth-btn-primary:active {
    transform: translateY(-1px);
    scale: 0.98;
}

.auth-btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(12px);
}

.auth-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Auth Links */
.auth-links {
    text-align: center;
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.auth-link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-base);
}

.auth-link:hover {
    color: white;
    text-decoration: underline;
}

/* Remember Me & Forgot Password */
.auth-extras {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: var(--space-6) 0;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    position: relative;
}

.form-check-input {
    width: 20px;
    height: 20px;
    margin: 0;
    appearance: none;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    backdrop-filter: blur(8px);
    position: relative;
}

.form-check-input:checked {
    background: var(--gradient-primary);
    border-color: var(--primary-400);
    transform: scale(1.05);
}

.form-check-input:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.form-check-input:hover {
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
}

.form-check-label {
    color: rgba(255, 255, 255, 0.95);
    font-size: var(--text-sm);
    margin: 0;
    cursor: pointer;
    font-weight: 500;
    transition: color var(--transition-base);
}

.form-check-label:hover {
    color: white;
}

.forgot-password {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: all var(--transition-base);
}

.forgot-password:hover {
    color: white;
    text-decoration: underline;
}

/* Alert Messages */
.alert-modern {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-6);
    backdrop-filter: blur(10px);
}

.alert-success-modern {
    background: rgba(34, 197, 94, 0.2);
    border-color: rgba(34, 197, 94, 0.3);
    color: white;
}

.alert-danger-modern {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.3);
    color: white;
}

.alert-warning-modern {
    background: rgba(245, 158, 11, 0.2);
    border-color: rgba(245, 158, 11, 0.3);
    color: white;
}

/* Legacy Auth Styles (Keep for compatibility) */
.auth-container {
    max-width: 400px;
    margin: 0 auto;
    padding: var(--space-8);
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.auth-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
}

/* Loading States */
.auth-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.auth-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

/* Social Login Buttons */
.social-login {
    margin: var(--space-6) 0;
}

.social-btn {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    transition: all var(--transition-base);
    margin-bottom: var(--space-3);
    backdrop-filter: blur(10px);
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
    transform: translateY(-1px);
}

/* Responsive Design */
@media (max-width: 576px) {
    .auth-modern-container {
        padding: 1rem 0.5rem;
    }

    .auth-card-modern {
        padding: var(--space-6);
        margin: var(--space-4);
    }

    .auth-title {
        font-size: var(--text-2xl);
    }

    .auth-extras {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }

    .floating-shape {
        display: none;
    }
}

@media (max-height: 700px) {
    .auth-modern-container {
        padding: 1rem;
    }

    .auth-card-modern {
        padding: var(--space-6);
    }
}