/* -------------------------------------------
    ✅ FINAL CONSOLIDATED & CORRECTED STYLES
    - Focus: GUARANTEED CENTERING on ALL screens, especially < 600px.
---------------------------------------------- */

/* -----------------------------
    1. CSS Variables (Design Tokens) - UNCHANGED
----------------------------- */
:root {
    --bg: #0f172a;
    --surface: #0b1220;
    --panel: #0f172a;
    --muted: #94a3b8;
    --text: #e6eef8;
    --accent: #10b981;
    --accent-strong: #059669;
    --brand: #4f46e5;
    --glass: rgba(255,255,255,0.04);
    --radius: 12px;
}
body.light {
    --bg: #ffffff;
    --surface: #f8fafc;
    --panel: #ffffff;
    --muted: #6b7280;
    --text: #0f172a;
    --accent: #16a34a;
    --brand: #4f46e5;
    --glass: rgba(15,23,42,0.04);
}

/* -----------------------------
    2. Base & Typography
----------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800&display=swap');

html, body {
    height: 100%;
}

body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
    background: linear-gradient(180deg, var(--bg) 0%, var(--surface) 100%); 
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    /* Explicitly centered by default */
    display: block; 
    margin: 0 auto; 
    padding: 2rem;
}

/* -----------------------------
    3. Header & Navigation (UNCHANGED)
----------------------------- */
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.logo {
    font-weight: 800;
    font-size: 1.8rem;
    letter-spacing: 0.2px;
    color: var(--text);
}

.header-right {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.sticky-nav {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* -----------------------------
    4. Profile (UNCHANGED)
----------------------------- */
.profile-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.profile-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    background: var(--glass);
    color: var(--text);
    font-size: 1.05rem;
}

.profile-name {
    font-weight: 600;
    color: var(--text);
    font-size: 1.1rem;
}

/* -----------------------------
    5. Buttons (Consolidated) (UNCHANGED)
----------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 10px 18px;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    font-weight: 700;
    text-decoration: none;
    transition: transform .12s ease, box-shadow .12s ease, background-color 0.2s;
}

.btn:active {
    transform: translateY(1px);
}

.btn-brand,
.create-btn,
.signup-btn,
.wallet-btn,
.mint-btn {
    background: var(--accent);
    color: var(--panel); 
    box-shadow: 0 6px 24px rgba(16,185,129,0.12);
    padding: 10px 18px;
    border-radius: 10px;
    font-weight: 700;
    text-decoration: none;
    border: none;
}
.btn-brand:hover,
.create-btn:hover,
.signup-btn:hover,
.wallet-btn:hover,
.mint-btn:hover {
    background: var(--accent-strong);
}

.btn-ghost {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.06);
    color: var(--text);
}

.wallet-btn:disabled,
.mint-btn:disabled {
    background: var(--muted);
    cursor: not-allowed;
    box-shadow: none;
}

/* -----------------------------
    6. Hero Section (UNCHANGED)
----------------------------- */
.hero {
    padding: 2.5rem;
    border-radius: var(--radius);
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
    box-shadow: 0 8px 30px rgba(2,6,23,0.6);
    margin-bottom: 2rem;
}
.hero h1 {
    margin: 0 0 0.8rem 0;
    font-size: 2.2rem;
    color: var(--text);
}
.hero p {
    margin: 0;
    color: var(--muted);
    font-size: 1.1rem;
}

/* -----------------------------
    7. Search & Filters (UNCHANGED)
----------------------------- */
.search-bar {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.search-input,
.filter-select {
    padding: 14px;
    border: 1px solid var(--glass);
    border-radius: 12px;
    font-size: 1rem;
    background: var(--panel);
    color: var(--text);
}

.search-input {
    flex: 1;
    min-width: 250px;
}

.filter-select {
    background: var(--panel);
}

.filter-chips {
    display: flex;
    gap: 0.5rem;
    margin: 1rem 0 1.25rem 0;
    flex-wrap: wrap;
}
.chip {
    background: transparent;
    border: 1px solid var(--glass);
    color: var(--text);
    padding: 8px 12px;
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.2s;
}
.chip.active {
    background: linear-gradient(90deg, var(--brand), var(--accent));
    color: var(--panel);
    border: none;
}

/* -----------------------------
    8. NFT Grid & Card (UNCHANGED)
----------------------------- */
.section-title {
    margin: 2rem 0 1rem 0;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text);
}

.nft-grid, 
.trending-grid,
.all-nfts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.nft-card {
    background: var(--panel);
    border-radius: var(--radius);
    padding: 0.8rem;
    box-shadow: 0 6px 18px rgba(2,6,23,0.6);
    transition: transform 0.3s, box-shadow 0.3s;
}
.nft-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(2,6,23,0.8);
}

.nft-card img {
    width: 100%;
    height: 200px; 
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.creators {
    margin: 2rem 0 1rem 0;
}

.creators-list{
    display:flex;
    gap:1rem;
    flex-wrap:wrap;
    margin-bottom: 2rem;
}
.creator{
    display:flex;
    align-items:center;
    gap:0.75rem;
    background:var(--panel);
    padding:0.6rem 0.9rem;
    border-radius:10px;
    flex-shrink: 0;
}
.nft-title {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text);
}

.nft-meta {
    padding: 0.6rem 0;
}
.nft-meta h3 {
    margin: 0;
    font-size: 1.1rem;
}
.nft-creator {
    margin: 0;
    color: var(--muted);
    font-size: 0.9rem;
}
.nft-price {
    margin-top: 0.4rem;
    font-weight: 700;
    color: var(--accent);
}

.buy-btn {
    width: 100%;
    padding: 12px;
    background: var(--brand);
    color: var(--text);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    margin-top: 16px;
    cursor: pointer;
    transition: background 0.3s;
}
.buy-btn:hover:not(:disabled) {
    background: color-mix(in srgb, var(--brand) 80%, white);
}


/* -----------------------------
    9. Forms (Sign Up / Mint) (UNCHANGED)
----------------------------- */
.signup-container {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.signup-form {
    background: var(--panel);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: 0 8px 30px rgba(2,6,23,0.6);
    width: 100%;
    max-width: 420px;
    color: var(--text);
}
.signup-form h2 {
    margin-bottom: 1.5rem;
    color: var(--text);
    font-size: 2rem;
    text-align: center;
}
.signup-form input {
    width: 100%;
    padding: 0.7rem;
    border-radius: 8px;
    border: 1px solid var(--glass);
    background: transparent;
    color: var(--text);
    font-size: 1rem;
}
.signup-form input:focus {
    border-color: var(--brand);
    outline: none;
}
.login-link {
    text-align: center;
    font-size: 0.95rem;
    color: var(--muted);
}
.login-link a {
    color: var(--brand);
    text-decoration: underline;
}

.mint-container {
    max-width: 600px;
    margin: 60px auto;
    background: var(--panel);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    color: var(--text);
}
.mint-container h2 {
    color: var(--text);
}
.form-group label {
    color: var(--text);
}
.form-group input,
.form-group textarea {
    border: 1px solid var(--glass);
    background: transparent;
    color: var(--text);
}
.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

/* -----------------------------
    10. Alerts & Messaging (UNCHANGED)
----------------------------- */
.alert {
    padding: 15px;
    margin: 20px 0;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
}
.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}
.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* -----------------------------
    11. Utility & Accessibility (UNCHANGED)
----------------------------- */
footer {
    margin-top: 2rem;
    padding: 2rem;
    text-align: center;
    color: var(--muted);
    border-top: 1px solid var(--glass);
}
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

.lets-talk-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, var(--brand) 0%, #2575fc 100%);
    color: white;
    z-index: 1000;
}
.lets-talk-btn:hover {
    box-shadow: 0 10px 25px rgba(37, 117, 252, 0.6);
}

/* -----------------------------
    12. Responsive Media Queries 🚀 FINAL CENTERING FIXES
----------------------------- */

/* Range: 1200px down to 901px */
@media (max-width: 1200px) {
    .container {
        /* Set a definite, smaller max-width, and re-enforce centering */
        max-width: 960px; 
        margin: 0 auto !important; /* Force centering to override potential conflicts */
        padding: 0 2rem;
    }
}

/* Range: 900px down to 601px (Tablet Portrait) */
@media (max-width: 900px) {
    .container {
        max-width: 700px;
        margin: 0 auto; 
        padding: 0 1.5rem; 
    }
    
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8rem;
    }
    .header-right {
        flex-wrap: wrap; 
        gap: 0.8rem;
    }
    .nft-grid, 
    .trending-grid,
    .all-nfts-grid {
        grid-template-columns: repeat(2, 1fr); 
    }
}

/* Range: 600px and below (Mobile Phones) */
@media (max-width: 600px) {
    .container {
        max-width: 100%;
        /* 1. Centering: Must be auto */
        margin: 0 auto; 
        /* 2. Side Spacing: Good padding prevents hitting edges */
        padding: 0 1rem; 
    }
    
    /* Layout stacking */
    .search-bar,
    .sticky-nav {
        flex-direction: column;
        gap: 0.5rem;
        /* Stretch components to fill the full centered width */
        align-items: stretch; 
    }

    .nft-grid, 
    .trending-grid,
    .all-nfts-grid { 
        grid-template-columns: 1fr; 
    }
    
    .signup-form {
        padding: 1.2rem 1rem;
        max-width: 100%;
    }
}

/* -----------------------------
    13. Fanciful Theme Overrides (Optional) (UNCHANGED)
----------------------------- */

.fancy-bg{
    position:fixed;inset:0;z-index:0;pointer-events:none;filter:blur(28px);opacity:0.95;
}
.fancy-bg .blob{position:absolute;border-radius:50%;mix-blend-mode:screen;opacity:.9;animation:float 12s ease-in-out infinite;}
.fancy-bg .blob.b1{width:420px;height:420px;left:-8%;top:10%;background:radial-gradient(circle at 30% 30%, #ff4d6d, transparent 40%), radial-gradient(circle at 70% 70%, #ff8a00, transparent 40%);animation-duration:18s}
.fancy-bg .blob.b2{width:600px;height:600px;right:-10%;bottom:-10%;background:radial-gradient(circle at 20% 20%, #7c4dff, transparent 30%),radial-gradient(circle at 80% 80%, #00e5ff, transparent 40%);animation-duration:22s}
.fancy-bg .blob.b3{width:300px;height:300px;left:50%;top:60%;transform:translateX(-40%);background:radial-gradient(circle at 40% 40%, #ffde59, transparent 35%);animation-duration:16s}

@keyframes float{0%{transform:translateY(0) scale(1)}50%{transform:translateY(-18px) scale(1.03)}100%{transform:translateY(0) scale(1)}}

.fanciful .container, .fanciful header, .fanciful .hero{position:relative;z-index:1}
.fanciful .hero{
    background:linear-gradient(135deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
    backdrop-filter: blur(6px);
    border-radius:16px;
    padding:2.5rem
}

.fanciful .btn,
.fanciful .create-btn, 
.fanciful .signup-btn, 
.fanciful .wallet-btn, 
.fanciful .mint-btn{
    background:linear-gradient(90deg,#ff6b6b 0%, #ff8a00 40%, #7c4dff 70%, #00e5ff 100%);
    color: #081124;
    box-shadow: 0 8px 40px rgba(124,77,255,0.12), inset 0 -2px 10px rgba(255,255,255,0.06);
    transform: translateZ(0);
}
.fanciful .btn:hover,
.fanciful .create-btn:hover, 
.fanciful .wallet-btn:hover, 
.fanciful .signup-btn:hover, 
.fanciful .mint-btn:hover{
    box-shadow: 0 18px 60px rgba(124,77,255,0.18), 0 2px 10px rgba(0,0,0,0.2);
    transform: translateY(-2px);
}

.fanciful .nft-card{
    transition:transform 220ms ease, box-shadow 220ms ease;
    border-radius:14px;
    background:linear-gradient(180deg,rgba(255,255,255,0.03), rgba(255,255,255,0.01));
    box-shadow:0 6px 24px rgba(2,6,23,0.6)
}
.fanciful .nft-card:hover{
    transform:translateY(-8px) scale(1.02);
    box-shadow:0 30px 80px rgba(124,77,255,0.12);
}

.fanciful .section-title{
    background:linear-gradient(90deg,#ff6b6b,#ff8a00,#7c4dff);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
    font-size:1.5rem;
}

@media (max-width:900px){
    .fancy-bg{filter:blur(18px)}
    .fancy-bg .blob{opacity:.85}
}
@keyframes sparkle{0%{opacity:0;transform:scale(.9)}50%{opacity:1;transform:scale(1.06)}100%{opacity:0;transform:scale(.9)}}
.sparkle{display:inline-block;animation:sparkle 1.6s ease-in-out infinite}