/* ================================================================
   APP CSS - User pages. Pure CSS/Flexbox/Grid. No frameworks.
   ================================================================ */
:root{
    /* ---- Primary color palette ---- */
    --color-primary:#e91e63;
    --color-primary-hover:#c2185b;
    --color-bg:#0d0d0d;
    --color-surface:#1c1c1e;
    --color-surface-hover:#252528;
    --color-border:#2c2c2e;
    --color-text:#f0f0f0;
    --color-text-muted:#8e8e93;
    --color-text-link:#e91e63;
    --radius:8px;
    --radius-lg:12px;
    --font:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
    --nav-h:60px;
    --sidebar-w:240px;

    /* ---- Aliases used by AppLayout.vue scoped styles ---- */
    --bg-primary:#0d0d0d;
    --bg-secondary:#1c1c1e;
    --bg-tertiary:#252528;
    --border-light:#2c2c2e;
    --text-primary:#f0f0f0;
    --text-secondary:#adadb0;
    --text-muted:#8e8e93;
    --accent:#e91e63;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
body{font-family:var(--font);background:var(--color-bg);color:var(--color-text);line-height:1.6;}
a{color:var(--color-text-link);text-decoration:none;}a:hover{text-decoration:underline;}

/* Layout */
.app-layout{display:flex;min-height:100vh;padding-top:var(--nav-h);}
.app-nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);background:var(--color-surface);border-bottom:1px solid var(--color-border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;z-index:100;}
.app-nav-brand{font-size:22px;font-weight:700;color:var(--color-primary);}
.app-nav-search{flex:0 1 400px;margin:0 24px;}
.app-nav-search input{width:100%;padding:8px 16px;background:var(--color-bg);border:1px solid var(--color-border);border-radius:20px;color:var(--color-text);font-size:14px;outline:none;}
.app-nav-search input:focus{border-color:var(--color-primary);}
.app-nav-actions{display:flex;align-items:center;gap:20px;}
.app-nav-icon{font-size:22px;cursor:pointer;}
.app-nav-avatar{width:32px;height:32px;border-radius:50%;background:var(--color-primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;color:#fff;cursor:pointer;}
.app-sidebar{width:var(--sidebar-w);position:fixed;top:var(--nav-h);left:0;bottom:0;background:var(--color-surface);border-right:1px solid var(--color-border);padding:16px 0;overflow-y:auto;}
.sidebar-nav-link{display:flex;align-items:center;gap:14px;padding:12px 24px;color:var(--color-text-muted);font-size:15px;transition:all .15s;border-left:3px solid transparent;}
.sidebar-nav-link:hover{color:var(--color-text);background:var(--color-surface-hover);text-decoration:none;}
.sidebar-nav-link.active,.sidebar-nav-link.router-link-active,.sidebar-nav-link.router-link-exact-active{color:var(--color-text);font-weight:600;border-left-color:var(--color-primary);background:var(--color-surface-hover);}
.sidebar-nav-icon{font-size:20px;width:24px;text-align:center;}
.app-main{flex:1;padding:24px;max-width:680px;margin-left:calc(var(--sidebar-w) + 24px);min-height:calc(100vh - var(--nav-h));background:var(--color-bg);}

/* Post card */
.post-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);margin-bottom:16px;overflow:hidden;box-shadow:0 1px 6px rgba(0,0,0,.45);transition:box-shadow .15s;}
.post-card:hover{box-shadow:0 2px 12px rgba(0,0,0,.6);}
.post-header{display:flex;align-items:center;gap:12px;padding:14px 16px;}
.post-avatar{width:36px;height:36px;border-radius:50%;background:var(--color-primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;color:#fff;}
.post-username{font-weight:600;font-size:14px;}
.post-time{font-size:12px;color:var(--color-text-muted);}
.post-media{width:100%;max-height:600px;object-fit:cover;display:block;}
.post-actions{display:flex;align-items:center;gap:16px;padding:12px 16px;}
.post-action-btn{background:none;border:none;color:var(--color-text);font-size:22px;cursor:pointer;padding:4px;}
.post-action-btn:hover{opacity:.7;}
.post-action-btn.liked{color:var(--color-primary);}
.post-action-btn.saved{color:#ffc107;}
.post-action-save{margin-left:auto;}
.post-likes{padding:0 16px;font-size:14px;font-weight:600;}
.post-caption{padding:8px 16px 12px;font-size:14px;}
.post-caption-username{font-weight:600;margin-right:6px;}
.post-comments-link{padding:0 16px 12px;font-size:13px;color:var(--color-text-muted);cursor:pointer;}

/* Comments */
.comment-section{border-top:1px solid var(--color-border);padding:12px 16px;}
.comment-item{display:flex;gap:10px;margin-bottom:12px;}
.comment-avatar{width:28px;height:28px;border-radius:50%;background:var(--color-border);flex-shrink:0;}
.comment-body{flex:1;}
.comment-username{font-weight:600;font-size:13px;margin-right:6px;}
.comment-text{font-size:13px;}
.comment-meta{font-size:11px;color:var(--color-text-muted);margin-top:4px;display:flex;gap:12px;}
.comment-input-wrap{display:flex;gap:10px;padding:12px 16px;border-top:1px solid var(--color-border);}
.comment-input{flex:1;background:transparent;border:none;color:var(--color-text);font-size:14px;outline:none;}
.comment-submit{background:none;border:none;color:var(--color-primary);font-weight:600;font-size:14px;cursor:pointer;}

/* Stories */
.stories-bar{display:flex;gap:16px;padding:16px 0;overflow-x:auto;margin-bottom:16px;}
.story-item{display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer;flex-shrink:0;}
.story-ring{width:64px;height:64px;border-radius:50%;padding:3px;background:linear-gradient(45deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888);}
.story-ring.seen{background:var(--color-border);}
.story-ring img{width:100%;height:100%;border-radius:50%;border:3px solid var(--color-bg);object-fit:cover;}
.story-name{font-size:11px;color:var(--color-text-muted);max-width:64px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* Explore grid */
.explore-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;}
.explore-item{position:relative;aspect-ratio:1;overflow:hidden;cursor:pointer;}
.explore-item img,.explore-item video{width:100%;height:100%;object-fit:cover;}
.explore-item:hover .explore-overlay{opacity:1;}
.explore-overlay{position:absolute;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;gap:24px;opacity:0;transition:opacity .2s;}
.explore-stat{color:#fff;font-weight:600;font-size:14px;display:flex;align-items:center;gap:6px;}
.profile-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;}

/* Create post */
.create-post-form{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px;}
.create-post-textarea{width:100%;min-height:120px;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text);padding:16px;font-size:15px;font-family:var(--font);resize:vertical;outline:none;}
.create-post-textarea:focus{border-color:var(--color-primary);}
.create-post-options{display:flex;align-items:center;gap:16px;margin:16px 0;}
.create-post-option{background:none;border:1px solid var(--color-border);color:var(--color-text-muted);padding:8px 16px;border-radius:20px;font-size:13px;cursor:pointer;}
.create-post-option:hover{border-color:var(--color-primary);color:var(--color-primary);}
.button-primary{width:100%;padding:14px;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius);font-size:16px;font-weight:600;cursor:pointer;}
.button-primary:hover{background:var(--color-primary-hover);}
.button-primary:disabled{opacity:.6;cursor:not-allowed;}
.nsfw-badge{background:#f44336;color:#fff;font-size:10px;font-weight:700;padding:2px 6px;border-radius:4px;margin-left:8px;}
.ai-badge{background:#9c27b0;color:#fff;font-size:10px;font-weight:700;padding:2px 6px;border-radius:4px;margin-left:8px;}

@media(max-width:768px){.app-sidebar{display:none;}.app-main{margin-left:0;padding:12px;max-width:100%;background:var(--color-bg);}.app-nav-search{display:none;}.explore-grid{gap:2px;}}