/* css/style.css */
/* Basic reset */
body, h1, h2, h3, p, ul, li, header, footer, main, section, form, input, button {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Cairo', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #121212;
    color: #f0f0f0;
    line-height: 1.6;
}
.container {
    width: 90%;
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem 0;
}
.site-header {
    background: linear-gradient(135deg, #0a0a0a 0%, #1f1f1f 100%);
    padding: 2rem 0;
    text-align: center;
    color: #fff;
}
.site-title {
    font-size: 2.5rem;
    font-weight: 700;
}
.site-subtitle {
    margin-top: 0.5rem;
    font-size: 1.2rem;
    opacity: 0.8;
}
.site-footer, .admin-footer {
    background: #0a0a0a;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
    color: #888;
}
.no-content {
    text-align: center;
    padding: 3rem;
    font-size: 1.2rem;
    opacity: 0.7;
}

/* presentation card style */
.pdf-item {
    margin-bottom: 3rem;
}
.pdf-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}
.pdf-canvas canvas {
    display: block;
    margin: 0 auto 1rem;
    max-width: 100%;
    box-shadow: 0 2px 8px rgba(0,0,0,0.4);
    border: 1px solid #333;
}
/* admin styles */
.admin-header {
    background: #1a1a1a;
    color: #fff;
    padding: 1rem 0;
}
.admin-header p {
    margin-top: 0.5rem;
    font-size: 0.9rem;
}
.admin-pdf-list {
    list-style: none;
}
.pdf-row {
    display: flex;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid #333;
}
.pdf-row .drag-handle {
    cursor: move;
    margin-right: 1rem;
}
.pdf-row .pdf-title {
    flex: 1;
}
.pdf-row .pdf-actions a {
    margin-left: 1rem;
    color: #4fa;
}
.small-button {
    background: none;
    border: 1px solid #888;
    color: #fff;
    padding: 0.2rem 0.5rem;
    font-size: 0.9rem;
    cursor: pointer;
}
.button {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: #4fa;
    color: #000;
    text-decoration: none;
    border-radius: 0.3rem;
    margin-bottom: 1rem;
}

.pdf-inline canvas {
    display: block;
    margin: 0 auto 1rem;
    max-width: 100%;
    box-shadow: 0 2px 8px rgba(0,0,0,0.4);
    border: 1px solid #333;
}
.error {
    color: #f66;
    margin-bottom: 1rem;
}
.pdf-form div {
    margin-bottom: 1rem;
}
.pdf-form label {
    display: block;
    margin-bottom: 0.3rem;
}
.pdf-form input[type="text"],
.pdf-form input[type="file"],
.pdf-form input[type="password"] {
    width: 100%;
    padding: 0.4rem;
    border: 1px solid #555;
    background: #222;
    color: #fff;
}
.pdf-form button,
.login-form button {
    padding: 0.6rem 1.2rem;
    background: #4fa;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}
.login-form {
    max-width: 400px;
    margin: 2rem auto;
}
.login-form div {
    margin-bottom: 1rem;
}

/* responsive adjustments */
@media (max-width: 600px) {
    .pdf-row {
        flex-direction: column;
        align-items: flex-start;
    }
    .pdf-row .pdf-actions a {
        display: block;
        margin-left: 0;
        margin-top: 0.5rem;
    }
}