/**
 * Стили страницы входа
 * Fox English School - LMS Platform
 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow: hidden;
    height: 100vh;
}

/* ===== ANIMATED BACKGROUND ===== */
.animated-bg {
    position: fixed;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #4facfe 75%, #00f2fe 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    z-index: -2;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ===== FLOATING SHAPES ===== */
.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    bottom: -150px;
    right: -150px;
    animation-delay: 3s;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    top: 50%;
    left: 10%;
    animation-delay: 7s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0) scale(1); }
    33% { transform: translateY(-50px) translateX(50px) scale(1.1); }
    66% { transform: translateY(50px) translateX(-50px) scale(0.9); }
}

/* ===== GLASS MORPHISM CONTAINER ===== */
.login-container {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.glass-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border-radius: 30px;
    padding: 60px 50px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.18);
    max-width: 450px;
    width: 100%;
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== LOGO ===== */
.logo-container {
    text-align: center;
    margin-bottom: 40px;
}

.logo-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

@keyframes pulse {
    0%, 100% { 
        transform: scale(1); 
        box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4); 
    }
    50% { 
        transform: scale(1.05); 
        box-shadow: 0 15px 40px rgba(102, 126, 234, 0.6); 
    }
}

.logo-icon i {
    font-size: 40px;
    color: white;
}

h1 {
    color: white;
    font-weight: 700;
    font-size: 32px;
    margin-bottom: 10px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    margin-bottom: 0;
}

/* ===== MODERN INPUTS ===== */
.input-group-modern {
    position: relative;
    margin-bottom: 30px;
}

.input-group-modern input {
    width: 100%;
    padding: 18px 20px 18px 55px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    color: white;
    font-size: 16px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.input-group-modern input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.6);
    box-shadow: 0 5px 20px rgba(255, 255, 255, 0.2);
}

.input-group-modern input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.input-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.8);
    font-size: 20px;
    pointer-events: none;
}

/* ===== MODERN BUTTON ===== */
.btn-modern {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 15px;
    color: white;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-modern::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 0.5s ease;
}

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

.btn-modern:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.6);
}

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

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

/* ===== FOOTER TEXT ===== */
.footer-text {
    text-align: center;
    margin-top: 30px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

.footer-text a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.footer-text a:hover {
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}

/* ===== LOADING SPINNER ===== */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

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

/* ===== SWEETALERT2 STYLING ===== */
.swal2-popup {
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.swal2-icon.swal2-success {
    border-color: #667eea;
}

.swal2-icon.swal2-error {
    border-color: #f5576c;
}

.swal2-title {
    color: #333;
    font-weight: 700;
}

.swal2-confirm {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    padding: 10px 30px;
    font-weight: 600;
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.swal2-confirm:hover {
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.6);
}

.swal2-timer-progress-bar {
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 576px) {
    .glass-card {
        padding: 40px 30px;
    }

    h1 {
        font-size: 26px;
    }

    .logo-icon {
        width: 60px;
        height: 60px;
    }

    .logo-icon i {
        font-size: 30px;
    }
}