/* --- Auth View --- */
#landing-view {
    display: none;
    flex-direction: column;
    background: var(--bg-dark);
    min-height: 100vh;
    overflow-y: auto;
}

#landing-view.active {
    display: block;
}

#auth-view {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at center, var(--bg-panel), var(--bg-dark));
    height: 100vh;
    width: 100vw;
}

#auth-view.active {
    display: flex;
}

.auth-page {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.auth-page-header {
    text-align: center;
}

.auth-site-logo {
    height: 76px;
    width: auto;
    display: block;
    object-fit: contain;
    cursor: pointer;
}

.back-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-weight: 600;
    cursor: pointer;
    transition: color 0.2s;
    font-size: 1rem;
}

.back-btn:hover {
    color: var(--accent);
}

.landing-page {
    width: 100%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* --- Landing Header --- */
.landing-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.landing-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo {
    height: 42px;
    width: auto;
    display: block;
    object-fit: contain;
}

.landing-header nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.landing-header nav a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

.landing-header nav a:hover {
    color: var(--accent);
}

.nav-auth-btn {
    background: var(--accent-hover);
    color: white;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
}

.nav-auth-btn:hover {
    background: #206a8a;
    transform: translateY(-2px);
}

/* --- Hero Section --- */
.hero {
    padding: 6.5rem 2rem 6rem;
    display: flex;
    align-items: center;
    gap: 4rem;
    min-height: 90vh;
    background: radial-gradient(circle at 70% 30%, rgba(173, 216, 245, 0.1), transparent);
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.hero-visual {
    flex: 1;
    position: relative;
}

.hero-img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    border: 1px solid var(--glass-border);
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
    transition: transform 0.5s;
}

.hero-img:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

/* --- Features Section --- */
.features {
    padding: 8rem 0;
    background: rgba(0, 0, 0, 0.2);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 3rem 2rem;
    border-radius: 24px;
    text-align: center;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.feature-card p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* --- Social Preview Section --- */
.social-preview-section {
    padding: 8rem 0;
    background:
        radial-gradient(circle at 82% 24%, rgba(52, 152, 219, 0.14), transparent 34%),
        rgba(0, 0, 0, 0.12);
}

.social-preview-layout {
    display: grid;
    grid-template-columns: minmax(280px, 0.85fr) minmax(0, 1.35fr);
    gap: 3rem;
    align-items: center;
}

.section-kicker {
    display: inline-flex;
    margin-bottom: 0.9rem;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.social-preview-copy h2 {
    max-width: 520px;
    margin-bottom: 1rem;
    font-size: clamp(2rem, 4vw, 3.1rem);
    line-height: 1.08;
}

.social-preview-copy p {
    max-width: 560px;
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.7;
}

.social-feature-list {
    display: grid;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

.social-feature-list span {
    display: block;
    padding: 0.85rem 1rem;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.045);
    color: var(--text-main);
    font-weight: 700;
}

.social-preview-visual {
    padding: 0.65rem;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 24px 55px rgba(0, 0, 0, 0.45);
}

.social-preview-visual img {
    display: block;
    width: 100%;
    border-radius: 10px;
}

/* --- Preview Section --- */
.previews {
    padding: 8rem 0;
}

.preview-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.preview-img {
    width: 100%;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    transition: transform 0.3s;
}

.preview-img:hover {
    transform: scale(1.02);
    z-index: 10;
}

.auth-box {
    width: 100%;
    max-width: 450px;
    padding: 3rem;
    border-radius: 24px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-tabs {
    display: flex;
    margin-top: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 4px;
}

.auth-tabs button {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 8px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.auth-tabs button.active {
    background: var(--accent-hover);
    color: var(--text-main);
}

.auth-form {
    display: none;
    flex-direction: column;
    gap: 1rem;
}

.auth-form.active {
    display: flex;
}

.bot-trap-field {
    position: absolute;
    left: -10000px;
    top: auto;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
}

.auth-form input, .auth-form select {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 12px;
    border-radius: 8px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}

.auth-form input:focus, .auth-form select:focus {
    border-color: var(--accent);
}

.auth-form select option {
    background: var(--bg-panel);
    color: var(--text-main);
}

.primary-btn {
    background: var(--accent-hover);
    color: var(--text-main);
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.primary-btn:hover {
    background: var(--accent);
    color: var(--bg-dark);
}

.primary-btn.large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.secondary-btn {
    background: transparent;
    border: 2px solid var(--accent-hover);
    color: var(--text-main);
    padding: 0.8rem 1.5rem;
    border-radius: 10px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.secondary-btn:hover {
    background: rgba(39, 127, 163, 0.1);
    border-color: var(--accent);
}

.secondary-btn.large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.error-msg {
    color: #ff6b6b;
    font-size: 0.9rem;
    text-align: center;
    min-height: 1.2em;
}

.login-debug-output {
    text-align: left;
    white-space: pre-wrap;
    overflow: auto;
    max-height: 280px;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 107, 107, 0.45);
    border-radius: 8px;
    padding: 0.75rem;
    font-family: Consolas, Monaco, monospace;
    font-size: 0.78rem;
    line-height: 1.35;
}