/* ==========================================
   ATLAS AGENCY - Client Demos Page
   Professional Demo Generator
   ========================================== */

:root {
    --color-bg: #ffffff;
    --color-bg-alt: #fafafa;
    --color-text: #000000;
    --color-text-light: #666666;
    --color-accent: #0066ff;
    --color-accent-hover: #0052cc;
    --color-border: #e5e5e5;
    --color-dark: #111111;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-primary);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ========== NAVIGATION ========== */
.demo-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 24px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    padding: 0 40px;
    transition: var(--transition);
}

.back-link svg {
    width: 20px;
    height: 20px;
    transition: var(--transition);
}

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

.back-link:hover svg {
    transform: translateX(-4px);
}

/* ========== CONTAINER ========== */
.demo-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 120px 40px 80px;
    min-height: 100vh;
}

/* ========== FORM SECTION ========== */
.demo-form-section {
    max-width: 700px;
    margin: 0 auto 80px;
    transition: var(--transition);
}

.demo-form-section.hidden {
    display: none;
}

.form-header {
    text-align: center;
    margin-bottom: 60px;
}

.demo-title {
    font-size: clamp(40px, 5vw, 56px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.title-line {
    display: block;
}

.title-line.gold {
    color: var(--color-accent);
}

.demo-subtitle {
    font-size: 18px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ========== FORM ========== */
.preview-form {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 48px;
}

.input-group {
    margin-bottom: 32px;
}

.input-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-dark);
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--color-border);
    border-radius: 6px;
    font-family: var(--font-primary);
    font-size: 16px;
    transition: var(--transition);
    background: white;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--color-accent);
}

.input-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 48px;
}

.generate-btn {
    width: 100%;
    padding: 18px;
    background: var(--color-dark);
    color: white;
    border: none;
    border-radius: 6px;
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.generate-btn:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.2);
}

.btn-icon svg {
    width: 20px;
    height: 20px;
}

/* ========== ACCESS INFO ========== */
.access-info {
    margin-top: 50px;
}

.info-box {
    background: var(--color-bg-alt);
    padding: 32px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 32px;
}

.info-box h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.info-box p {
    font-size: 15px;
    color: var(--color-text-light);
    margin-bottom: 24px;
    line-height: 1.6;
}

.btn-link {
    display: inline-block;
    padding: 12px 28px;
    background: var(--color-dark);
    color: white;
    border-radius: 6px;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
}

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

.info-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--color-text-light);
}

.feature-item svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
}

/* ========== ERROR MESSAGE ========== */
.error-message {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    backdrop-filter: blur(10px);
}

.error-message.active {
    display: flex;
}

.error-content {
    background: white;
    padding: 48px;
    border-radius: 12px;
    text-align: center;
    max-width: 400px;
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.error-content svg {
    width: 60px;
    height: 60px;
    color: #ff3333;
    margin-bottom: 24px;
}

.error-content h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.error-content p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 32px;
}

.btn-close-error {
    padding: 14px 32px;
    background: var(--color-dark);
    color: white;
    border: none;
    border-radius: 6px;
    font-family: var(--font-primary);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-close-error:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
}

/* ========== PREVIEW SECTION ========== */
.demo-preview-section {
    display: none;
}

.demo-preview-section.active {
    display: block;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.preview-header h2 {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.close-preview {
    width: 44px;
    height: 44px;
    background: white;
    border: 2px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.close-preview svg {
    width: 20px;
    height: 20px;
    color: var(--color-dark);
}

.close-preview:hover {
    background: var(--color-dark);
    border-color: var(--color-dark);
    transform: rotate(90deg);
}

.close-preview:hover svg {
    color: white;
}

/* ========== BROWSER MOCKUP ========== */
.browser-mockup {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    margin-bottom: 40px;
}

.browser-header {
    background: var(--color-bg-alt);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
}

.browser-buttons {
    display: flex;
    gap: 8px;
}

.browser-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.browser-btn.red {
    background: #ff5f56;
}

.browser-btn.yellow {
    background: #ffbd2e;
}

.browser-btn.green {
    background: #27c93f;
}

.browser-url {
    flex: 1;
    background: white;
    padding: 8px 16px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--color-border);
}

.browser-url svg {
    width: 16px;
    height: 16px;
    color: var(--color-text-light);
}

.browser-url span {
    font-size: 14px;
    color: var(--color-text-light);
}

/* ========== PREVIEW CONTENT ========== */
.browser-content {
    background: white;
    min-height: 600px;
}

.preview-hero {
    padding: 80px 60px;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-accent) 100%);
    color: white;
    text-align: center;
}

.preview-hero h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.preview-hero p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

.preview-cta {
    display: inline-block;
    padding: 14px 32px;
    background: white;
    color: var(--color-dark);
    border-radius: 6px;
    font-weight: 600;
    transition: var(--transition);
}

.preview-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}

.preview-sections {
    padding: 60px;
}

.preview-section {
    margin-bottom: 60px;
}

.preview-section h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 24px;
}

.preview-placeholder {
    height: 200px;
    background: var(--color-bg-alt);
    border: 2px dashed var(--color-border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
}

.preview-placeholder.small {
    height: 150px;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.preview-card {
    height: 200px;
    background: var(--color-bg-alt);
    border: 2px dashed var(--color-border);
    border-radius: 8px;
    transition: var(--transition);
}

.preview-card:hover {
    background: var(--color-border);
    transform: translateY(-4px);
}

/* ========== CTA SECTION ========== */
.preview-cta-section {
    background: var(--color-bg-alt);
    padding: 60px;
    border-radius: 12px;
    text-align: center;
}

.preview-cta-section h3 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.preview-cta-section p {
    font-size: 16px;
    color: var(--color-text-light);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-btn {
    padding: 16px 32px;
    border-radius: 6px;
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    display: inline-block;
}

.cta-btn.primary {
    background: var(--color-dark);
    color: white;
}

.cta-btn.primary:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.2);
}

.cta-btn.secondary {
    background: transparent;
    color: var(--color-dark);
    border: 2px solid var(--color-dark);
}

.cta-btn.secondary:hover {
    background: var(--color-dark);
    color: white;
    transform: translateY(-2px);
}

/* ========== LOADING OVERLAY ========== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.98);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.loading-overlay.active {
    display: flex;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 24px;
}

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

.loading-text {
    font-size: 16px;
    color: var(--color-text-light);
    font-weight: 500;
}

/* ========== LANG SWITCHER ========== */
.lang-switcher {
    display: flex;
    gap: 8px;
    margin-right: 40px;
    margin-left: auto;
}

.demo-nav {
    display: flex;
    /* Added flex to position back-link and lang-switcher */
    justify-content: space-between;
    align-items: center;
}

.lang-btn {
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-light);
    cursor: pointer;
    transition: var(--transition);
}

.lang-btn:hover {
    border-color: var(--color-dark);
    color: var(--color-dark);
}

.lang-btn.active {
    background: var(--color-dark);
    color: white;
    border-color: var(--color-dark);
}

@media (max-width: 768px) {
    .lang-switcher {
        margin-right: 24px;
    }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .demo-container {
        padding: 100px 24px 60px;
    }

    .preview-form {
        padding: 32px 24px;
    }

    .info-features {
        grid-template-columns: 1fr;
    }

    .error-content {
        padding: 32px 24px;
        margin: 20px;
    }

    .preview-grid {
        grid-template-columns: 1fr;
    }

    .preview-hero {
        padding: 60px 32px;
    }

    .preview-hero h1 {
        font-size: 32px;
    }

    .preview-sections {
        padding: 40px 24px;
    }

    .preview-cta-section {
        padding: 40px 24px;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-btn {
        width: 100%;
    }

    .back-link {
        padding: 0 24px;
    }
}

/* FIX: Prevent horizontal scroll on mobile */
html, body {
    overflow-x: hidden !important;
    max-width: 100%;
}