/* =========================================
   Variables & Reset
   ========================================= */
   :root {
    --bg-parchment: #f4ebd8;
    --text-main: #2c2a27;
    --text-muted: #5c5549;
    --accent-color: #4a4036;
    --accent-hover: #312a23;
    --frame-bg: #fffbf2;
    --font-main: 'Vazirmatn', sans-serif;
    
    /* NEW FEATURE: Colors for social buttons */
    --color-instagram: #e1306c;
    --color-telegram: #0088cc;
    --color-x: #000000;
}

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

body, html {
    width: 100%;
    height: 100%;
    background-color: #1a1a1a; 
    font-family: var(--font-main);
    color: var(--text-main);
    overflow: hidden; 
}

/* =========================================
   Layout & Backgrounds
   ========================================= */
.app-wrapper {
    max-width: 480px; 
    margin: 0 auto;
    height: 100vh;
    height: 100dvh; 
    position: relative;
    overflow: hidden;
    transition: background 0.5s ease; /* Smooth background transition */
}

/* NEW FEATURE: Customizable Backgrounds per Tab */
.bg-home {
    background-color: var(--bg-parchment);
    background-image: radial-gradient(circle at center, transparent 0%, rgba(0,0,0,0.03) 100%);
    box-shadow: inset 0 0 60px rgba(139, 115, 85, 0.15), 0 0 20px rgba(0,0,0,0.5);
}

.bg-settings {
    background-color: #e8f0fe;
    background-image: linear-gradient(135deg, #e8f0fe 0%, #cfdef3 100%);
}

.bg-description {
    background-color: #fdfbfb;
    background-image: linear-gradient(120deg, #fdfbfb 0%, #ebedee 100%);
}

.bg-explore {
    background-color: #faebd7;
    background-image: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(0,0,0,0.02) 10px, rgba(0,0,0,0.02) 20px);
}

/* =========================================
   Tabs System
   ========================================= */
.tab-page {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow-y: auto;
    padding-top: 60px; /* Space for hamburger menu */
}

.active-tab {
    z-index: 10;
}

/* Scroll Container (TikTok/Reels style) */
.scroll-container {
    padding-top: 0; /* Override padding for home to keep reels full screen */
    scroll-snap-type: y mandatory;
    scroll-behavior: smooth;
    -ms-overflow-style: none; 
    scrollbar-width: none; 
}

.scroll-container::-webkit-scrollbar {
    display: none; 
}

/* =========================================
   Menu (Hamburger & Overlay)
   ========================================= */
.menu-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 35px;
    height: 25px;
    z-index: 100;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.menu-btn span {
    display: block;
    height: 4px;
    width: 100%;
    border-radius: 2px;
    transition: 0.3s;
}

.nav-menu {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.85);
    backdrop-filter: blur(5px);
    z-index: 90;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
}

.active-indicator {
    margin-bottom: 30px;
    font-size: 1.2rem;
    color: #4cd137; /* Green to indicate active */
    font-weight: bold;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.nav-links {
    list-style: none;
    text-align: center;
}

.nav-links li {
    margin: 15px 0;
}

.nav-links button {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    font-family: var(--font-main);
    cursor: pointer;
    transition: color 0.2s;
}

.nav-links button:hover, .nav-links button.active-nav {
    color: #4cd137;
}

/* =========================================
   UI Components (Boxes, Toggles, Buttons)
   ========================================= */
.box-container {
    background: rgba(255,255,255,0.9);
    margin: 20px;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    color: #333;
}

.box-container h2 {
    margin-bottom: 20px;
    text-align: center;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
}

/* Toggle Switch */
.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    font-size: 1.1rem;
    font-weight: bold;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider { background-color: #239f40; }
input:checked + .slider:before { transform: translateX(22px); }

/* Description Tab & Social Buttons */
.description-box { text-align: center; }
.author-text { color: #666; margin-bottom: 15px; }
.desc-text { line-height: 1.8; margin-bottom: 30px; text-align: justify;}

.social-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 10px;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    font-size: 1.1rem;
    transition: transform 0.2s;
}

.social-btn:hover { transform: scale(1.02); }

.instagram-btn { background-color: var(--color-instagram); }
.telegram-btn { background-color: var(--color-telegram); }
.x-btn { background-color: var(--color-x); }

.icon-circle {
    background: rgba(255,255,255,0.2);
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* =========================================
   Slide (Existing code kept intact)
   ========================================= */
.slide {
    height: 100vh;
    height: 100dvh;
    width: 100%;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
    position: relative;
}

.slide-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
    height: 100%;
    max-height: 700px;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.slide-content.visible {
    opacity: 1;
    transform: translateY(0);
}

.photo-frame {
    width: 220px;
    height: 280px;
    background-color: var(--frame-bg);
    padding: 12px;
    border-radius: 4px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    margin-bottom: 2rem;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 2px;
    filter: sepia(0.2) contrast(0.95);
    transition: opacity 0.3s ease;
    opacity: 0; 
}

.photo.loaded { opacity: 1; }

.img-spinner {
    position: absolute;
    width: 30px;
    height: 30px;
    border: 3px solid rgba(0,0,0,0.1);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.name {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.details {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.details strong { font-weight: 700; }

.btn-container {
    margin-top: auto;
    width: 100%;
    display: flex;
    justify-content: center;
}

.media-btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: var(--accent-color);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    border-radius: 30px;
    font-size: 1rem;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 4px 10px rgba(74, 64, 54, 0.3);
}

.media-btn:hover, .media-btn:active {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

/* =========================================
   Utility / States
   ========================================= */
.hidden { display: none !important; }

.state-container {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}

.spinner {
    width: 40px; height: 40px;
    border: 4px solid rgba(0,0,0,0.1);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

.error-icon {
    width: 50px; height: 50px;
    color: #a03c3c;
    margin-bottom: 1rem;
}

.retry-btn {
    margin-top: 1.5rem;
    padding: 0.6rem 1.2rem;
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    border-radius: 20px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
}

@keyframes spin { to { transform: rotate(360deg); } }