/**
 * Login Sayfası Stilleri
 * Modern ve Animasyonlu Login Tasarımı
 */

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

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

/* ============================================================
   ANIMATED BACKGROUND PARTICLES
   ============================================================ */
.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    top: 0;
    left: 0;
}

.particle {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 15s infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) translateX(0) rotate(0deg);
    }

    25% {
        transform: translateY(-100px) translateX(50px) rotate(90deg);
    }

    50% {
        transform: translateY(-200px) translateX(-50px) rotate(180deg);
    }

    75% {
        transform: translateY(-100px) translateX(-100px) rotate(270deg);
    }
}

/* ============================================================
   LOGIN CONTAINER
   ============================================================ */
.login-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 450px;
    padding: 0 20px;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 25px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    animation: slideUp 0.8s ease-out;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================
   LOGIN HEADER
   ============================================================ */
.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.login-logo-container {
    position: relative;
    z-index: 1;
}

.login-logo {
    width: 100px;
    height: 100px;
    margin-bottom: 1rem;
    animation: logoPulse 3s ease-in-out infinite;
    filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.3));
}

@keyframes logoPulse {

    0%,
    100% {
        transform: scale(1);
        filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.3));
    }

    50% {
        transform: scale(1.05);
        filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.4));
    }
}

.login-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.login-subtitle {
    font-size: 0.95rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

/* ============================================================
   LOGIN BODY
   ============================================================ */
.login-body {
    padding: 2.5rem 2rem;
}

/* ============================================================
   ALERT ANIMATIONS
   ============================================================ */
.alert {
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-10px);
    }

    75% {
        transform: translateX(10px);
    }
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */
.form-group {
    margin-bottom: 1.5rem;
    position: relative;
    transition: transform 0.3s ease;
}

.form-label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-label i {
    color: #667eea;
}

/* Input Fields */
.form-control {
    border: 2px solid #e9ecef;
    border-radius: 12px;
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.15);
    background: white;
    transform: translateY(-2px);
}

.form-control:hover {
    border-color: #c5cae9;
}

/* ============================================================
   PASSWORD TOGGLE
   ============================================================ */
.password-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #6c757d;
    transition: all 0.3s ease;
    z-index: 10;
    font-size: 1.1rem;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle:hover {
    color: #667eea;
    transform: translateY(-50%) scale(1.1);
}

.password-toggle:active {
    transform: translateY(-50%) scale(0.95);
}

/* ============================================================
   SUBMIT BUTTON
   ============================================================ */
.btn-login {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 12px;
    padding: 0.85rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    width: 100%;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-login:hover::before {
    width: 300px;
    height: 300px;
}

.btn-login:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.btn-login:active {
    transform: translateY(-1px);
}

.btn-login i {
    margin-right: 0.5rem;
}

/* Loading State */
.btn-login.loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn-login.loading .btn-text {
    display: none;
}

.btn-login.loading .btn-spinner {
    display: inline-block;
}

.btn-spinner {
    display: none;
}

/* ============================================================
   FOOTER
   ============================================================ */
.login-footer {
    padding: 1.5rem 2rem;
    background: #f8f9fa;
    text-align: center;
    border-top: 1px solid #e9ecef;
}

.login-footer p {
    margin: 0;
    color: #6c757d;
    font-size: 0.85rem;
}

/* ============================================================
   REMEMBER ME CHECKBOX
   ============================================================ */
.form-check {
    margin: 1rem 0;
}

.form-check-input:checked {
    background-color: #667eea;
    border-color: #667eea;
}

.form-check-label {
    color: #6c757d;
    font-size: 0.9rem;
    cursor: pointer;
}

/* ============================================================
   RESPONSIVE DESIGN
   ============================================================ */
@media (max-width: 576px) {
    .login-header {
        padding: 2rem 1.5rem;
    }

    .login-title {
        font-size: 1.5rem;
    }

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

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

@media (max-width: 380px) {
    .login-container {
        padding: 0 15px;
    }

    .login-body {
        padding: 1.5rem;
    }

    .form-control {
        font-size: 0.9rem;
        padding: 0.75rem 0.9rem;
    }
}