:root {
    --bg-color: #0b0b0f;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-color: #6366f1;
    --error-color: #f87171;
    --glass-blur: 12px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hidden {
    display: none !important;
}

/* Glassmorphism Card */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--card-border);
    border-radius: 20px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* Overlay Styles */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.login-card {
    padding: 40px;
    width: 90%;
    max-width: 400px;
    text-align: center;
}

.login-card h1 {
    margin-bottom: 10px;
    font-weight: 600;
    letter-spacing: -1px;
}

.login-card p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 0.9rem;
}

/* Header */
header {
    padding: 30px 0;
    position: sticky;
    top: 0;
    background: rgba(11, 11, 15, 0.8);
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid var(--card-border);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Buttons & Inputs */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

input, textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 12px 15px;
    color: white;
    font-family: inherit;
    outline: none;
    transition: border-color 0.3s;
}

input:focus, textarea:focus {
    border-color: var(--accent-color);
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    transition: transform 0.2s, opacity 0.2s;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--card-border);
    padding: 12px 24px;
    border-radius: 10px;
    cursor: pointer;
}

.error-msg {
    color: var(--error-color);
    margin-top: 15px;
    font-size: 0.85rem;
    min-height: 1.2rem;
}

/* Timeline & Cards */
.timeline {
    padding: 40px 0;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.entry-card {
    padding: 25px;
    transition: transform 0.3s ease;
}

.entry-card:hover {
    transform: translateY(-5px);
}

.entry-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.entry-header h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

.entry-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.entry-content {
    color: var(--text-secondary);
    margin-bottom: 20px;
    white-space: pre-wrap;
}

.entry-photo {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 20px;
    display: block;
    transition: transform 0.3s ease;
}

.entry-photo:hover {
    transform: scale(1.02);
}

.music-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    padding: 20px;
}

.modal-content {
    width: 100%;
    max-width: 500px;
    padding: 30px;
}

.modal-content h3 {
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 10px;
}

.loader {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* Mobile Adjustments */
@media (max-width: 600px) {
    .header-content h2 {
        font-size: 1.2rem;
    }
    .entry-card {
        padding: 20px;
    }
}