/* style.css - Güvenli Notlar stil dosyası (index.php ile birlikte) */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    min-height: 100vh;
    color: #fff;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-box {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.lock-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 50%;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

h1 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 8px;
}

.subtitle {
    text-align: center;
    color: #cbd5e1;
    margin-bottom: 32px;
}

input, textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: #fff;
    font-size: 16px;
    margin-bottom: 16px;
}

input::placeholder, textarea::placeholder {
    color: #94a3b8;
}

input:focus, textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
}

button:disabled {
    background: #475569;
    cursor: not-allowed;
    transform: none;
}

.error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.5);
    color: #fecaca;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 16px;
    text-align: center;
}

.info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #93c5fd;
    padding: 16px;
    border-radius: 8px;
    margin-top: 24px;
    text-align: center;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-top: 32px;
}

.btn-group {
    display: flex;
    gap: 12px;
}

.btn-secondary {
    width: auto;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.1);
    font-size: 14px;
}

.note-input-box {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
}

textarea {
    resize: none;
    height: 100px;
}

.notes-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.note-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 20px;
    position: relative;
    transition: all 0.3s;
}

.note-card:hover {
    background: rgba(255, 255, 255, 0.15);
}

.note-content {
    color: #fff;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 12px;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.note-date {
    color: #94a3b8;
    font-size: 14px;
}

.delete-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    background: rgba(239, 68, 68, 0.2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s;
}

.note-card:hover .delete-btn {
    opacity: 1;
}

.delete-btn:hover {
    background: rgba(239, 68, 68, 0.3);
    transform: none;
}

.empty-state {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 60px 20px;
    text-align: center;
}

.empty-icon {
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

.empty-text {
    color: #94a3b8;
    font-size: 18px;
    margin-bottom: 8px;
}

.empty-subtext {
    color: #64748b;
    font-size: 14px;
}

.note-count {
    text-align: center;
    color: #94a3b8;
    font-size: 14px;
    margin-top: 24px;
}

.hidden {
    display: none;
}