/* CSS Reset & Variables */
:root {
    --primary-color: #0f172a;      /* Dark slate */
    --accent-color: #2563eb;       /* Modern Royal Blue */
    --accent-hover: #1d4ed8;       /* Darker blue */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --bg-color: #f1f5f9;           /* Very soft elegant slate-gray background */
    --glass-bg: #ffffff;           /* Clean white card */
    --glass-border: rgba(203, 213, 225, 0.5); /* Subtle border */
    --glass-shadow: 0 10px 40px -10px rgba(15, 23, 42, 0.1);
    --input-bg: #ffffff;
    --input-border: #cbd5e1;
    --input-focus: #2563eb;
    --error-bg: #fee2e2;
    --error-text: #b91c1c;
    --transition-speed: 0.3s;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* KANUN 1: İnce ve zarif bir görünüm için temel font boyutu küçültüldü */
html {
    font-size: 13px;
}

body {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

/* Centered Wrapper */
.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 2rem;
}

.login-form-container {
    width: 100%;
    max-width: 420px;
    padding: 3rem 2.5rem;
    border-radius: 1.25rem;
}

.glass-effect {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.logo-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 2.5rem;
}

.brand-logo {
    max-height: 80px;
    object-fit: contain;
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-header h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.form-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.error-message {
    background-color: var(--error-bg);
    color: var(--error-text);
    padding: 1rem;
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Form Inputs */
.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.input-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    color: var(--text-primary);
    background-color: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: 0.75rem;
    transition: all var(--transition-speed) ease;
    outline: none;
}

.input-group input:focus {
    border-color: var(--input-focus);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.input-group input::placeholder {
    color: #94a3b8;
}

/* Captcha */
.captcha-wrapper {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.captcha-badge {
    background-color: var(--bg-color);
    border: 1.5px solid var(--input-border);
    border-radius: 0.75rem;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-color);
    min-width: 100px;
    text-align: center;
    letter-spacing: 2px;
    user-select: none;
}

.captcha-wrapper input {
    flex: 1;
}

/* Form Actions */
.form-actions {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-bottom: 2rem;
    font-size: 0.875rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: 500;
}

.remember-me input[type="checkbox"] {
    appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--input-border);
    border-radius: 4px;
    background-color: white;
    cursor: pointer;
    position: relative;
    transition: all 0.2s ease;
}

.remember-me input[type="checkbox"]:checked {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.remember-me input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Submit Button */
.btn-login {
    width: 100%;
    padding: 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-speed) ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.btn-login svg {
    width: 1.25rem;
    height: 1.25rem;
    transition: transform var(--transition-speed) ease;
}

.btn-login:hover {
    background-color: #1e293b;
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
}

.btn-login:hover svg {
    transform: translateX(4px);
}

/* Footer */
.login-footer {
    text-align: center;
    margin-top: 2rem;
}

.login-footer p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.footer-divider {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--input-border), transparent);
    margin: 1rem auto;
    width: 60%;
}

.powered-by {
    font-size: 0.75rem !important;
}

.dogru-bilisim-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 0.5px;
    display: inline-block;
    animation: modern-pulse 2.5s infinite ease-in-out;
    transition: color 0.3s;
}

.dogru-bilisim-link:hover {
    color: var(--accent-hover);
    animation: none; /* Stop pulsing on hover for better readability */
}

@keyframes modern-pulse {
    0% {
        opacity: 0.7;
        text-shadow: 0 0 0px transparent;
    }
    50% {
        opacity: 1;
        text-shadow: 0 0 10px rgba(37, 99, 235, 0.5);
        transform: scale(1.03);
    }
    100% {
        opacity: 0.7;
        text-shadow: 0 0 0px transparent;
    }
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .login-wrapper {
        padding: 1rem;
    }
    
    .login-form-container {
        padding: 2rem 1.5rem;
    }
}