/* ===========================
   Modern Login Page Styles
   Kochler Yönetim Sistemi
   =========================== */

/* Reset ve Temel Stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

/* Login Container */
.login-container {
    width: 100%;
    max-width: 420px;
    animation: fadeIn 0.5s ease-in;
}

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

/* Login Card */
.login-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 40px 30px;
    position: relative;
}

/* Header */
.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo-circle {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.logo-circle svg {
    width: 36px;
    height: 36px;
    color: white;
}

.login-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 8px;
}

.subtitle {
    font-size: 14px;
    color: #718096;
    font-weight: 400;
}

/* Messages & Alerts */
.messages {
    margin-bottom: 20px;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 12px;
    font-size: 14px;
    display: flex;
    align-items: center;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-error {
    background-color: #fed7d7;
    color: #c53030;
    border-left: 4px solid #c53030;
}

.alert-success {
    background-color: #c6f6d5;
    color: #22543d;
    border-left: 4px solid #22543d;
}

.alert-warning {
    background-color: #feebc8;
    color: #7c2d12;
    border-left: 4px solid #dd6b20;
}

/* Form Styles */
.login-form {
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    transition: all 0.3s ease;
    background-color: #f7fafc;
    color: #2d3748;
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
    background-color: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-input::placeholder {
    color: #a0aec0;
}

.form-input.error {
    border-color: #fc8181;
    background-color: #fff5f5;
}

.field-error {
    display: block;
    color: #c53030;
    font-size: 13px;
    margin-top: 6px;
    font-weight: 500;
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 10px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 14px;
    color: #4a5568;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    cursor: pointer;
    accent-color: #667eea;
}

.forgot-password {
    font-size: 14px;
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

.forgot-password:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* Primary Button */
.btn-primary {
    width: 100%;
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
}

/* Footer */
.login-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.login-footer p {
    font-size: 12px;
    color: #a0aec0;
}

/* Responsive Design */
@media (max-width: 480px) {
    .login-card {
        padding: 32px 24px;
    }

    .login-header h1 {
        font-size: 24px;
    }

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

    .logo-circle svg {
        width: 30px;
        height: 30px;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .forgot-password {
        margin-left: auto;
    }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    /* Şimdilik light mode kullanıyoruz,
       gelecekte dark mode eklenebilir */
}