/* =========================
   RESET + BASE
========================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Poppins", sans-serif;
    background: #0f172a;
    color: #e2e8f0;
    transition: all 0.3s ease;
}

/* LIGHT MODE */
body:not(.night-mode) {
    background: #f8fafc;
    color: #1e293b;
}

/* =========================
   NAVBAR
========================= */
header {
    position: sticky;
    top: 0;
    backdrop-filter: blur(12px);
    background: rgba(15, 23, 42, 0.75);
    z-index: 1000;
}

body:not(.night-mode) header {
    background: rgba(255, 255, 255, 0.8);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 8%;
}

nav h1 {
    font-size: 22px;
    color: #38bdf8;
    font-weight: 700;
}

/* NAV LINKS */
.nav-links {
    display: flex;
    align-items: center;
    gap: 18px;
}

.nav-links a {
    text-decoration: none;
    color: #cbd5f5;
    font-size: 14px;
    transition: 0.3s;
}

.nav-links a:hover {
    color: #38bdf8;
}

/* LIGHT MODE NAV LINKS CONTRAST FIX */
body:not(.night-mode) .nav-links a {
    color: #1e293b; /* darker gray for sufficient contrast */
}

/* =========================
   TOGGLE SWITCH
========================= */
.switch {
    position: relative;
    width: 42px;
    height: 22px;
}

.switch input {
    display: none;
}

.slider {
    position: absolute;
    cursor: pointer;
    background: #334155;
    border-radius: 50px;
    inset: 0;
    transition: 0.4s;
}

.slider:before {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    left: 4px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: 0.4s;
}

input:checked + .slider {
    background: #38bdf8;
}

input:checked + .slider:before {
    transform: translateX(18px);
}

/* =========================
   HERO TEXT
========================= */
h2 {
    text-align: center;
    padding: 25px 20px;
    font-size: 18px;
    color: #94a3b8;
}

body:not(.night-mode) h2 {
    color: #475569;
}

/* =========================
   MAIN CONTAINER
========================= */
.container {
    max-width: 800px;
    margin: auto;
    padding: 20px;
}

/* =========================
   INPUT SECTION
========================= */
#input-section {
    background: rgba(255,255,255,0.05);
    padding: 25px;
    border-radius: 14px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.25);
    transition: 0.3s;
}

#input-section:hover {
    transform: translateY(-3px);
}

body:not(.night-mode) #input-section {
    background: white;
}

/* INPUT GROUP */
.input-group {
    display: flex;
    border-radius: 10px;
    overflow: hidden;
}

.input-group input {
    flex: 1;
    padding: 12px;
    border: none;
    outline: none;
    font-size: 14px;
    background: #1e293b;
    color: white;
}

body:not(.night-mode) .input-group input {
    background: #f1f5f9;
    color: black;
}

.input-group button {
    background: #38bdf8;
    border: none;
    padding: 0 15px;
    color: white;
    cursor: pointer;
}

/* DOWNLOAD BUTTON */
#url-form button[type="submit"] {
    width: 100%;
    margin-top: 12px;
    padding: 12px;
    border-radius: 10px;
    border: none;
    background: linear-gradient(90deg, #38bdf8, #6366f1);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
}

#url-form button:hover {
    transform: scale(1.03);
}

/* =========================
   PREVIEW
========================= */
#preview-container {
    margin-top: 25px;
}

.media-wrapper {
    margin: 15px 0;
    padding: 12px;
    border-radius: 12px;
    background: rgba(255,255,255,0.05);
    animation: fadeIn 0.5s ease;
}

body:not(.night-mode) .media-wrapper {
    background: white;
}

.media-wrapper img,
.media-wrapper video {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
    margin-bottom: 10px;
}

/* DOWNLOAD BTN CONTRAST FIX */
.media-wrapper button {
    margin-top: 10px;
    padding: 8px 14px;
    border-radius: 6px;
    border: none;
    background: #16a34a; /* slightly darker green for better contrast */
    color: white;
    cursor: pointer;
    transition: 0.2s;
}

.media-wrapper button:hover {
    transform: scale(1.05);
}

/* BACK BUTTON */
#back-btn {
    margin-top: 15px;
    padding: 10px 20px;
    border-radius: 8px;
    background: #64748b;
    border: none;
    color: white;
}

/* =========================
   LOADER (SPINNER)
========================= */
.loader {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255,255,255,0.1);
    border-top: 4px solid #38bdf8;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 30px auto;
}

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

/* =========================
   BLOG SECTION
========================= */
#blog-section {
    margin-top: 40px;
    line-height: 1.7;
}

#blog-section h2 {
    margin-bottom: 10px;
}

/* =========================
   ADS (CLS SAFE)
========================= */
.ad-container {
    min-height: 120px;
    margin: 30px 0;
    padding: 15px;
    text-align: center;
    border-radius: 10px;
    background: rgba(255,255,255,0.05);
}

body:not(.night-mode) .ad-container {
    background: #f1f5f9;
}

.ad-banner {
    text-align: center;
    margin: 10px 0;
    font-size: 14px;
}

/* =========================
   FOOTER
========================= */
footer {
    margin-top: 40px;
    padding: 30px 8%;
    background: #020617;
}

body:not(.night-mode) footer {
    background: #e2e8f0;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.footer-section h4 {
    margin-bottom: 10px;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 6px;
}

/* FOOTER LINKS CONTRAST FIX */
.footer-section a {
    text-decoration: none;
    color: #1e293b; /* dark gray for light mode */
}

.footer-section a:hover {
    color: #38bdf8;
}

/* FOOTER BOTTOM */
.footer-bottom {
    text-align: center;
    margin-top: 20px;
}

/* =========================
   SOCIAL SHARE
========================= */
.share-text {
    text-align: center;
    margin-top: 20px;
}

.social-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 10px;
}

.social-buttons .btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: 0.3s;
}

.social-buttons .btn:hover {
    transform: translateY(-4px) scale(1.1);
}

.facebook { background:#1877f2; }
.twitter { background:#1da1f2; }
.linkedin { background:#0077b5; }
.whatsapp { background:#25d366; }
.telegram { background:#0088cc; }

/* =========================
   ANIMATION
========================= */
@keyframes fadeIn {
    from {opacity:0; transform: translateY(10px);}
    to {opacity:1; transform: translateY(0);}
}

/* =========================
   RESPONSIVE
========================= */
@media(max-width:768px) {
    nav {
        flex-direction: column;
        gap: 10px;
    }

    .footer-container {
        flex-direction: column;
        gap: 20px;
    }
}