/* ============================================================
   DOCTOMD - Estilos basados en el diseño de Setblau
   ============================================================ */

:root {
    --primary-color: #1B8AB8;
    --secondary-color: #0F5A7A;
    --accent-color: #2BA5D8;
    --success-color: #28a745;
    --error-color: #dc3545;
    --warning-color: #ffc107;
    --light-bg: #f8f9fa;
    --dark-text: #333333;
    --light-text: #666666;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(27, 138, 184, 0.1);
    --shadow-hover: 0 4px 20px rgba(27, 138, 184, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--dark-text);
    background-color: var(--light-bg);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */

.header {
    background-color: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo h1 {
    color: var(--primary-color);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -1px;
}

.logo .tagline {
    font-size: 12px;
    color: var(--light-text);
    margin-left: 5px;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--dark-text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    font-size: 14px;
}

.nav-link:hover {
    color: var(--primary-color);
}

/* ============================================================
   HERO SECTION
   ============================================================ */

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 80px 20px;
    text-align: center;
    background-image: 
        linear-gradient(135deg, rgba(27, 138, 184, 0.95) 0%, rgba(15, 90, 122, 0.95) 100%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 400"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="1200" height="400" fill="url(%23grid)" /></svg>');
}

.hero-content {
    max-width: 600px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero p {
    font-size: 20px;
    opacity: 0.95;
    margin-bottom: 0;
}

/* ============================================================
   CONVERTER SECTION
   ============================================================ */

.converter {
    padding: 60px 20px;
    background-color: white;
}

.converter-box {
    max-width: 700px;
    margin: 0 auto;
}

.upload-area {
    border: 3px dashed var(--primary-color);
    border-radius: 12px;
    padding: 60px 40px;
    text-align: center;
    background: linear-gradient(to bottom, rgba(27, 138, 184, 0.05), rgba(27, 138, 184, 0.02));
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--accent-color);
    background: linear-gradient(to bottom, rgba(43, 165, 216, 0.1), rgba(43, 165, 216, 0.05));
    box-shadow: var(--shadow-hover);
}

.upload-icon {
    font-size: 60px;
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.upload-area h3 {
    color: var(--dark-text);
    font-size: 24px;
    margin-bottom: 15px;
    font-weight: 600;
}

.upload-area p {
    color: var(--light-text);
    margin: 15px 0;
    font-size: 16px;
}

.info-text {
    margin-top: 20px;
    color: var(--light-text);
    font-size: 13px;
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
    padding: 12px 32px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--secondary-color);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--light-bg);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

/* ============================================================
   PROGRESS SECTION
   ============================================================ */

.progress-section {
    padding: 40px;
    text-align: center;
}

.progress-container {
    background: linear-gradient(to bottom, rgba(27, 138, 184, 0.05), white);
    border-radius: 12px;
    padding: 30px;
}

.filename {
    font-weight: 600;
    color: var(--dark-text);
    margin-bottom: 20px;
    font-size: 16px;
}

.progress-bar {
    height: 8px;
    background-color: var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    margin: 20px 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 10px;
    width: 0%;
    animation: progress 1.5s ease-in-out infinite;
}

@keyframes progress {
    0% { width: 10%; }
    50% { width: 80%; }
    100% { width: 100%; }
}

.progress-text {
    color: var(--light-text);
    font-size: 14px;
    margin: 15px 0 0 0;
}

/* ============================================================
   RESULT SECTION
   ============================================================ */

.result-section {
    padding: 40px;
    text-align: center;
}

.result-success {
    background: linear-gradient(to bottom, rgba(40, 167, 69, 0.05), white);
    border: 2px solid var(--success-color);
    border-radius: 12px;
    padding: 40px;
}

.success-icon {
    font-size: 64px;
    margin-bottom: 20px;
    animation: successPulse 0.6s ease-out;
}

@keyframes successPulse {
    0% { transform: scale(0.5); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.result-success h3 {
    color: var(--success-color);
    font-size: 28px;
    margin-bottom: 15px;
}

.result-success p {
    color: var(--light-text);
    margin-bottom: 30px;
    font-size: 16px;
}

.result-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.preview-section {
    text-align: left;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.preview-section h4 {
    color: var(--dark-text);
    margin-bottom: 15px;
    font-size: 14px;
    text-transform: uppercase;
    font-weight: 600;
}

.preview-box {
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 20px;
    max-height: 300px;
    overflow-y: auto;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 13px;
    color: var(--dark-text);
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
}

.preview-box code {
    background-color: #f5f5f5;
    padding: 2px 6px;
    border-radius: 3px;
}

/* ============================================================
   ERROR SECTION
   ============================================================ */

.error-section {
    padding: 40px;
    text-align: center;
}

.error-section > * + * {
    margin-top: 15px;
}

.error-icon {
    font-size: 64px;
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.error-section h3 {
    color: var(--error-color);
    font-size: 28px;
    margin: 15px 0;
}

.error-section p {
    color: var(--light-text);
    margin: 15px 0;
}

/* ============================================================
   FEATURES SECTION
   ============================================================ */

.features {
    background-color: white;
    padding: 80px 20px;
}

.features > h2,
.how-it-works > h2,
.formats > h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--dark-text);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.feature-card h3 {
    color: var(--dark-text);
    font-size: 20px;
    margin-bottom: 10px;
    font-weight: 600;
}

.feature-card p {
    color: var(--light-text);
    font-size: 15px;
}

/* ============================================================
   HOW IT WORKS SECTION
   ============================================================ */

.how-it-works {
    background-color: var(--light-bg);
    padding: 80px 20px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.step {
    text-align: center;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border-radius: 50%;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
}

.step h3 {
    color: var(--dark-text);
    font-size: 22px;
    margin-bottom: 10px;
    font-weight: 600;
}

.step p {
    color: var(--light-text);
    font-size: 16px;
}

/* ============================================================
   FORMATS SECTION
   ============================================================ */

.formats {
    background-color: white;
    padding: 80px 20px;
}

.formats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.format-item {
    background: linear-gradient(135deg, rgba(27, 138, 184, 0.1), rgba(43, 165, 216, 0.05));
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.format-item strong {
    display: block;
    color: var(--primary-color);
    font-size: 16px;
    margin-bottom: 8px;
}

.format-item p {
    color: var(--light-text);
    font-size: 14px;
    margin: 0;
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
    background-color: var(--dark-text);
    color: white;
    padding: 30px 20px;
    text-align: center;
    font-size: 14px;
}

.footer p {
    margin: 0;
    opacity: 0.8;
}

/* ============================================================
   UTILITIES
   ============================================================ */

.hidden {
    display: none !important;
}

/* ============================================================
   RESPONSIVE DESIGN
   ============================================================ */

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 20px;
    }

    .nav {
        width: 100%;
        justify-content: center;
        gap: 15px;
        flex-wrap: wrap;
    }

    .nav-link {
        font-size: 12px;
    }

    .hero h2 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }

    .upload-area {
        padding: 40px 20px;
    }

    .upload-icon {
        font-size: 48px;
    }

    .upload-area h3 {
        font-size: 20px;
    }

    .features > h2,
    .how-it-works > h2,
    .formats > h2 {
        font-size: 28px;
    }

    .result-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .steps {
        gap: 20px;
    }

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

@media (max-width: 480px) {
    .logo h1 {
        font-size: 22px;
    }

    .nav {
        flex-direction: column;
        gap: 10px;
    }

    .hero {
        padding: 40px 20px;
    }

    .hero h2 {
        font-size: 24px;
    }

    .hero p {
        font-size: 14px;
    }

    .converter {
        padding: 30px 20px;
    }

    .upload-area {
        padding: 30px 15px;
    }

    .upload-icon {
        font-size: 36px;
    }

    .info-text {
        font-size: 12px;
    }
}