:root {
    --cloud: #F5F3EF;
    --cloud-light: #FAFAF8;
    --pure: #FFFFFF;
    --glass: rgba(255, 255, 255, 0.55);
    --glass-border: rgba(255, 255, 255, 0.8);
    --text: #1A1A1A;
    --text-soft: #555555;
    --text-muted: #999999;
    --danger: #D64545;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { overflow-y: scroll; overflow-x: hidden; height: 100%; }
body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(160deg, var(--cloud) 0%, var(--cloud-light) 40%, var(--pure) 100%);
    background-attachment: fixed;
    min-height: 100%;
    color: var(--text);
    display: flex;
    flex-direction: column;
}

.glass {
    background: var(--glass);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
}

header { padding-top: 20px; }
.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 16px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}
nav {
    display: flex;
    gap: 4px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.04), inset 0 1px 0 rgba(255,255,255,0.8);
}
nav a { text-decoration: none; }
nav button {
    background: transparent; border: none; padding: 10px 20px; font-family: 'Poppins', sans-serif;
    font-size: 13px; color: var(--text-soft); border-radius: 10px; cursor: pointer; transition: all .3s ease;
}
nav button:hover { color: var(--text); background: rgba(255,255,255,.5); }
nav button.active { background: var(--pure); color: var(--text); font-weight: 500; box-shadow: 0 2px 10px rgba(0,0,0,.06); }
nav button.logo-btn { font-weight: 700; font-size: 14px; }

.header-favorites {
    display: flex; align-items: center; gap: 6px; padding: 8px 12px; height: 59px;
    background: rgba(255, 255, 255, 0.45); backdrop-filter: blur(40px); -webkit-backdrop-filter: blur(40px);
    border: 1px solid rgba(255,255,255,.6); border-radius: 16px; box-shadow: 0 8px 32px rgba(0,0,0,.04), inset 0 1px 0 rgba(255,255,255,.8);
}
.header-favorites .favorite-item {
    display: flex; align-items: center; justify-content: center; width: 38px; height: 38px;
    background: rgba(255,255,255,.5); border-radius: 10px; transition: all .2s ease;
}
.header-favorites .favorite-item:hover { background: rgba(255,255,255,.9); transform: scale(1.1); }
.header-favorites .favorite-icon { width: 20px; height: 20px; border-radius: 3px; }

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 40px 60px;
    width: 100%;
    flex: 1;
}

.input-card { padding: 18px; margin-bottom: 18px; }
.input-title { font-size: 13px; font-weight: 600; margin-bottom: 10px; }
.input-row { display: flex; gap: 10px; }
.input-row input {
    flex: 1; padding: 14px 16px; border-radius: 12px; border: 1px solid rgba(0,0,0,.08);
    font-family: 'Poppins', sans-serif; font-size: 14px; background: rgba(255,255,255,.8);
}
.input-row input:focus { outline: none; border-color: #7a5ca0; }
.btn-primary {
    padding: 14px 28px; border-radius: 12px; border: 1px solid rgba(255,255,255,.4); background: rgba(255,255,255,.7);
    font-family: 'Poppins', sans-serif; font-size: 14px; cursor: pointer; transition: all .2s ease;
}
.btn-primary:hover { background: rgba(255,255,255,.95); }
.input-hint { margin-top: 10px; font-size: 12px; color: var(--text-muted); }

.filters-row { display: flex; justify-content: flex-end; gap: 10px; margin-bottom: 16px; }
#monthFilter, #typeFilter {
    min-width: 170px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid rgba(0,0,0,.08);
    background: rgba(255,255,255,.8);
    font-family: 'Poppins', sans-serif;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: none !important;
}
#monthFilter::-ms-expand,
#typeFilter::-ms-expand {
    display: none;
}

.memory-grid {
    column-width: 280px;
    column-gap: 14px;
}

.memory-card {
    padding: 14px;
    border-radius: 16px;
    border: 1px solid rgba(0,0,0,.08);
    background: rgba(255,255,255,.75);
    height: auto;
    align-self: start;
    width: 100%;
    display: inline-block;
    margin: 0 0 14px;
    break-inside: avoid;
    -webkit-column-break-inside: avoid;
    page-break-inside: avoid;
}
.memory-top { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.memory-tag { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .6px; }
.memory-delete { border: none; background: none; color: var(--danger); font-size: 18px; cursor: pointer; }
.memory-text { font-size: 14px; line-height: 1.4; overflow-wrap: anywhere; }
.memory-url { margin-top: 8px; font-size: 12px; color: #6e4f95; text-decoration: none; overflow-wrap: anywhere; display: block; }
.memory-image-wrap {
    margin-top: 8px;
    margin-left: auto;
    margin-right: auto;
    border-radius: 12px;
    border: 1px solid rgba(0,0,0,.08);
    background: rgba(255,255,255,.55);
    display: flex;
    width: fit-content;
    max-width: 100%;
    justify-content: center;
    align-items: center;
    padding: 8px;
}
.memory-image {
    max-width: 100%;
    width: auto;
    height: auto;
    max-height: 360px;
    display: block;
    object-fit: contain;
    border-radius: 10px;
    cursor: zoom-in;
}
.memory-site-preview {
    position: relative;
    height: 160px;
    border-radius: 12px;
    border: 1px solid rgba(0,0,0,.08);
    background: linear-gradient(135deg, rgba(122,92,160,.13), rgba(255,255,255,.5));
    overflow: hidden;
    margin-bottom: 8px;
}
.memory-site-preview-link { text-decoration: none; display: block; }
.memory-site-shot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.memory-site-shot.hidden { display: none; }
.memory-site-overlay {
    position: absolute;
    left: 8px;
    right: 8px;
    bottom: 8px;
    border-radius: 10px;
    background: rgba(15, 10, 20, .55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: #fff;
    padding: 7px 9px;
}
.memory-site-overlay img { width: 16px; height: 16px; border-radius: 3px; }
.link-title { font-weight: 500; margin-top: 2px; }
.memory-description {
    margin-top: 6px;
    font-size: 12px;
    line-height: 1.45;
    color: var(--text-soft);
}
.memory-tweet {
    border-radius: 12px; border: 1px solid rgba(0,0,0,.08); background: rgba(255,255,255,.85); padding: 10px;
}
.tweet-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-size: 12px; color: var(--text-muted); }
.tweet-avatar { width: 24px; height: 24px; border-radius: 50%; background: #111; color: #fff; display: flex; align-items: center; justify-content: center; font-size: 11px; }
.tweet-text { margin-bottom: 6px; }
.tweet-media {
    width: 100%;
    max-height: 260px;
    object-fit: cover;
    border-radius: 10px;
    border: 1px solid rgba(0,0,0,.08);
    margin: 4px 0 8px;
    cursor: zoom-in;
}
.empty-state { padding: 18px; border-radius: 14px; border: 1px dashed rgba(0,0,0,.15); text-align: center; color: var(--text-muted); }

.memory-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .82);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    padding: 20px;
}
.memory-lightbox.open { display: flex; }
.memory-lightbox-inner { position: relative; max-width: 96vw; max-height: 96vh; }
.memory-lightbox-img {
    max-width: 96vw;
    max-height: 92vh;
    width: auto;
    height: auto;
    border-radius: 12px;
    background: #111;
}
.memory-lightbox-close {
    position: absolute;
    top: -14px;
    right: -14px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: #fff;
    color: #111;
    font-size: 20px;
    cursor: pointer;
}

.site-footer { padding: 30px 40px 40px; }
.footer-bottom { text-align: center; font-size: 12px; color: var(--text-muted); }
.footer-logout { color: var(--text-muted); text-decoration: none; }
.footer-logout:hover { color: var(--danger); }

.mobile-logo-btn, .burger-menu-btn, .mobile-nav, .mobile-nav-overlay { display: none; }
@media (max-width: 900px) {
    nav, .header-favorites { display: none; }
    .burger-menu-btn, .mobile-logo-btn { display: block; }
    .burger-menu-btn { padding: 14px; background: white; border-radius: 12px; box-shadow: 0 2px 8px rgba(0,0,0,.08); cursor: pointer; }
    .burger-icon { display: flex; flex-direction: column; gap: 4px; width: 18px; }
    .burger-icon span { height: 2px; background: var(--text); border-radius: 2px; }
    .mobile-logo-btn { padding: 12px 20px; background: white; border-radius: 12px; box-shadow: 0 2px 8px rgba(0,0,0,.08); color: var(--text); text-decoration: none; font-weight: 700; }
    .mobile-nav { position: fixed; inset: 0; background: white; z-index: 2000; opacity: 0; visibility: hidden; transition: all .3s ease; flex-direction: column; }
    .mobile-nav.open { opacity: 1; visibility: visible; display: flex; }
    .mobile-nav-header { display: flex; justify-content: flex-end; padding: 16px 20px; }
    .close-mobile-nav { width: 44px; height: 44px; border-radius: 12px; background: white; border: none; box-shadow: 0 2px 8px rgba(0,0,0,.08); font-size: 18px; }
    .mobile-nav-links { padding: 8px 24px 16px; }
    .mobile-nav-links a { display: block; padding: 12px 20px; color: var(--text); text-decoration: none; border-radius: 12px; }
    .mobile-nav-links a.active-link, .mobile-nav-links a:hover { background: rgba(0,0,0,.04); }
    .mobile-nav-favorites { padding: 16px 24px 30px; border-top: 1px solid rgba(0,0,0,.06); margin-top: auto; }
    .mobile-nav-favorites-title { font-size: 11px; color: var(--text-muted); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 1px; }
    .mobile-nav-favorites-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .mobile-nav-favorites-grid a { display: flex; align-items: center; justify-content: center; aspect-ratio: 1; border-radius: 10px; background: rgba(0,0,0,.03); }
    .mobile-nav-favorites-grid img { width: 22px; height: 22px; border-radius: 4px; }
    .mobile-nav-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 1999; opacity: 0; visibility: hidden; transition: all .3s ease; }
    .mobile-nav-overlay.open { display: block; opacity: 1; visibility: visible; }
    .header-inner { padding: 16px; }
    main { padding: 20px 16px 40px; }
    .input-row { flex-direction: column; }
    .filters-row { justify-content: stretch; }
    #monthFilter, #typeFilter { min-width: 0; width: 100%; }
    .memory-grid { column-width: 240px; }
}