/* =============================================
   GuíasPDF — Premium Stylesheet
   ============================================= */

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

:root {
    --primary:       hsl(224, 88%, 62%);
    --primary-dark:  hsl(224, 88%, 52%);
    --primary-glow:  hsla(224, 88%, 62%, 0.28);
    --secondary:     hsl(270, 80%, 65%);
    --accent:        hsl(175, 80%, 50%);

    --bg:            hsl(222, 20%, 8%);
    --bg-2:          hsl(222, 18%, 11%);
    --bg-card:       hsl(222, 18%, 12.5%);
    --bg-elevated:   hsl(222, 18%, 16%);
    --border:        hsl(222, 16%, 22%);
    --border-hover:  hsl(222, 20%, 32%);

    --text:          hsl(220, 25%, 96%);
    --text-2:        hsl(220, 15%, 70%);
    --text-muted:    hsl(220, 12%, 45%);

    --success:       hsl(152, 70%, 50%);
    --danger:        hsl(4, 80%, 62%);

    --radius-sm:     8px;
    --radius:        14px;
    --radius-lg:     20px;
    --radius-xl:     28px;

    --shadow-sm:     0 2px 8px hsla(0,0%,0%,0.3);
    --shadow:        0 8px 32px hsla(0,0%,0%,0.4);
    --shadow-lg:     0 20px 60px hsla(0,0%,0%,0.5);
    --glow:          0 0 48px var(--primary-glow);

    --transition:    all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Base ---- */
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* ---- Animated Background Blobs ---- */
.bg-blob {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
    animation: drift 20s ease-in-out infinite;
}
.blob-1 {
    width: 600px; height: 600px;
    background: hsla(224, 88%, 62%, 0.06);
    top: -200px; left: -200px;
    animation-delay: 0s;
}
.blob-2 {
    width: 500px; height: 500px;
    background: hsla(270, 80%, 65%, 0.07);
    bottom: -100px; right: -150px;
    animation-delay: -7s;
}
.blob-3 {
    width: 400px; height: 400px;
    background: hsla(175, 80%, 50%, 0.05);
    top: 50%; left: 50%;
    transform: translate(-50%,-50%);
    animation-delay: -14s;
}
@keyframes drift {
    0%,100% { transform: translate(0,0) scale(1); }
    33%      { transform: translate(30px,-20px) scale(1.05); }
    66%      { transform: translate(-20px,30px) scale(0.95); }
}

/* ---- Header ---- */
.header {
    position: sticky;
    top: 0;
    z-index: 200;
    background: hsla(222, 20%, 8%, 0.80);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--border);
}
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.9rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}
.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 0 10px var(--primary-glow));
    flex-shrink: 0;
}
.logo-name {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}
.logo-sub {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 400;
    letter-spacing: 0.01em;
}
.header-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: hsla(152, 70%, 50%, 0.12);
    color: var(--success);
    border: 1px solid hsla(152, 70%, 50%, 0.25);
    padding: 0.35rem 0.85rem;
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 600;
}
.badge-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%,100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.6; transform: scale(0.8); }
}

/* ---- Hero ---- */
.hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem 2.5rem;
    text-align: center;
    position: relative;
    z-index: 1;
}
.hero-title {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 1.1rem;
}
.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-2);
    max-width: 540px;
    margin: 0 auto 2.2rem;
    font-weight: 400;
}
.hero-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}
.step {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 0.45rem 0.85rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-2);
}
.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px; height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    flex-shrink: 0;
}
.step-arrow {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* ---- Main Layout ---- */
.main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ---- Card Base ---- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, hsla(224,88%,62%,0.04) 0%, transparent 60%);
    pointer-events: none;
}

/* ---- Upload Card ---- */
.upload-card {
    cursor: pointer;
    padding: 3.5rem 2rem;
    border-style: dashed;
    border-color: var(--border);
    text-align: center;
    transition: var(--transition);
}
.upload-card:hover, .upload-card.drag-over {
    border-color: var(--primary);
    border-style: solid;
    box-shadow: var(--glow);
    transform: translateY(-3px);
}
.upload-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    pointer-events: none;
}
/* Upload Animation */
.upload-anim {
    position: relative;
    width: 90px; height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}
.upload-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid;
    animation: ripple 2.4s ease-out infinite;
}
.ring-1 { width: 90px; height: 90px; border-color: hsla(224,88%,62%,0.5); animation-delay: 0s; }
.ring-2 { width: 70px; height: 70px; border-color: hsla(224,88%,62%,0.35); animation-delay: 0.3s; }
.ring-3 { width: 50px; height: 50px; border-color: hsla(224,88%,62%,0.2); animation-delay: 0.6s; }
@keyframes ripple {
    0%   { transform: scale(0.85); opacity: 1; }
    100% { transform: scale(1.3); opacity: 0; }
}
.upload-emoji {
    font-size: 2.2rem;
    animation: float 3s ease-in-out infinite;
    position: relative; z-index: 2;
}
@keyframes float {
    0%,100% { transform: translateY(0); }
    50%      { transform: translateY(-7px); }
}
.upload-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-top: 0.4rem;
}
.upload-sub {
    color: var(--text-2);
    font-size: 0.95rem;
}
.upload-formats {
    color: var(--text-muted);
    font-size: 0.78rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}
.pulse-btn {
    pointer-events: all;
    animation: pulse-glow 2.5s ease-in-out infinite;
}
@keyframes pulse-glow {
    0%,100% { box-shadow: 0 4px 20px var(--primary-glow); }
    50%      { box-shadow: 0 4px 40px hsla(224,88%,62%,0.5), 0 0 0 6px hsla(224,88%,62%,0.1); }
}

/* ---- Settings Card ---- */
.settings-card {
    padding: 1.5rem 1.75rem;
}
.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}
.section-title {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.01em;
}
.section-title svg { color: var(--primary); flex-shrink: 0; }
.stats-pills { display: flex; gap: 0.5rem; }
.pill {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text-2);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    transition: var(--transition);
}
.pill-accent {
    background: hsla(224,88%,62%,0.12);
    border-color: hsla(224,88%,62%,0.3);
    color: var(--primary);
}
.settings-row {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    align-items: flex-end;
}
.setting-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}
.setting-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.select-wrap {
    position: relative;
}
.select-wrap::after {
    content: '▾';
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    font-size: 0.75rem;
}
.setting-select {
    appearance: none;
    -webkit-appearance: none;
    background: var(--bg-elevated);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.55rem 2rem 0.55rem 0.85rem;
    font-size: 0.9rem;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    cursor: pointer;
    min-width: 160px;
    transition: var(--transition);
    outline: none;
}
.setting-select:focus, .setting-select:hover {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}
/* Toggle */
.toggle-group { justify-content: flex-end; }
.toggle-label {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    cursor: pointer;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-2);
    user-select: none;
    margin-bottom: 0.1rem;
}
.toggle-input { display: none; }
.toggle-track {
    width: 42px; height: 24px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 50px;
    position: relative;
    transition: var(--transition);
    flex-shrink: 0;
}
.toggle-thumb {
    position: absolute;
    left: 3px; top: 50%;
    transform: translateY(-50%);
    width: 18px; height: 18px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: var(--transition);
}
.toggle-input:checked + .toggle-track {
    background: var(--primary);
    border-color: var(--primary);
}
.toggle-input:checked + .toggle-track .toggle-thumb {
    left: calc(100% - 21px);
    background: white;
}

/* ---- Preview Card ---- */
.preview-card { padding: 1.5rem 1.75rem; }
.preview-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.4rem;
    flex-wrap: wrap;
    gap: 1rem;
}
.count-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.15rem 0.55rem;
    border-radius: 50px;
    min-width: 24px;
}
.preview-actions {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}
.drag-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}
.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}

/* ---- Guide Card ---- */
.guide-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: grab;
    transition: var(--transition);
    user-select: none;
    position: relative;
}
.guide-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow), 0 0 0 1px hsla(224,88%,62%,0.2);
}
.guide-card:active { cursor: grabbing; }
.guide-card.dragging {
    opacity: 0.45;
    transform: scale(0.97);
    box-shadow: var(--shadow-lg);
    z-index: 10;
}
.guide-card.drag-over-target {
    border-color: var(--secondary);
    box-shadow: 0 0 0 2px var(--secondary), 0 0 20px hsla(270,80%,65%,0.2);
}
.guide-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.55rem 0.75rem;
    background: hsla(0,0%,0%,0.25);
    border-bottom: 1px solid var(--border);
}
.guide-num {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.02em;
}
.guide-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.2rem 0.4rem;
    border-radius: 6px;
    font-size: 1rem;
    transition: var(--transition);
    line-height: 1;
    display: flex;
    align-items: center;
}
.guide-remove:hover {
    color: var(--danger);
    background: hsla(4,80%,62%,0.12);
}
.guide-img-wrap {
    background: white;
    padding: 0.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    position: relative;
}
.guide-img-wrap img {
    width: 100%;
    height: 130px;
    object-fit: contain;
    display: block;
}
.guide-loader {
    position: absolute;
    inset: 0;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
}
.guide-loader-spin {
    width: 24px; height: 24px;
    border: 3px solid hsl(222,18%,88%);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}
.guide-footer {
    padding: 0.4rem 0.75rem;
    font-size: 0.72rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ---- Buttons ---- */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    padding: 0.65rem 1.4rem;
    border-radius: 50px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 16px var(--primary-glow);
    font-family: 'Inter', sans-serif;
    white-space: nowrap;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px hsla(224,88%,62%,0.45);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--bg-elevated);
    color: var(--text-2);
    border: 1px solid var(--border);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Inter', sans-serif;
    white-space: nowrap;
}
.btn-ghost:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: hsla(224,88%,62%,0.06);
}

.btn-danger-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid transparent;
    padding: 0.6rem 1.1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Inter', sans-serif;
    white-space: nowrap;
}
.btn-danger-ghost:hover {
    color: var(--danger);
    background: hsla(4,80%,62%,0.08);
    border-color: hsla(4,80%,62%,0.25);
}

/* ---- Progress Overlay ---- */
.progress-overlay {
    position: fixed;
    inset: 0;
    background: hsla(222, 20%, 5%, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
}
.progress-modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2.5rem 3rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
    min-width: 300px;
}
.progress-rings {
    position: relative;
    width: 70px; height: 70px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
.prog-ring {
    position: absolute;
    border-radius: 50%;
    border: 3px solid transparent;
    animation: spin 1.2s linear infinite;
}
.pr-1 {
    width: 70px; height: 70px;
    border-top-color: var(--primary);
    border-right-color: hsla(224,88%,62%,0.25);
    border-bottom-color: transparent;
    animation-duration: 1.2s;
}
.pr-2 {
    width: 50px; height: 50px;
    border-top-color: var(--secondary);
    border-left-color: hsla(270,80%,65%,0.25);
    border-bottom-color: transparent;
    animation-duration: 0.9s;
    animation-direction: reverse;
}
.prog-icon { font-size: 1.4rem; position: relative; z-index: 2; }
@keyframes spin { to { transform: rotate(360deg); } }
.progress-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}
.progress-text {
    color: var(--text-muted);
    font-size: 0.88rem;
    margin-bottom: 1.25rem;
}
.progress-bar-wrap {
    height: 5px;
    background: var(--bg-elevated);
    border-radius: 50px;
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 50px;
    width: 0%;
    transition: width 0.4s ease;
    animation: shimmer 1.5s linear infinite;
    background-size: 200% 100%;
}
@keyframes shimmer {
    0%   { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* ---- Toast ---- */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(120%);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    z-index: 600;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    white-space: nowrap;
    backdrop-filter: blur(12px);
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.success { border-color: hsla(152,70%,50%,0.4); color: var(--success); }
.toast.error   { border-color: hsla(4,80%,62%,0.4);  color: var(--danger); }

/* ---- Layout Picker Visual ---- */
.setting-block {
    margin-bottom: 0.25rem;
}
.layout-picker {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 0.6rem;
}
.layout-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-elevated);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 0.9rem 0.6rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Inter', sans-serif;
    color: var(--text-2);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    min-width: 72px;
    position: relative;
    overflow: hidden;
}
.layout-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, hsla(224,88%,62%,0.08), transparent);
    opacity: 0;
    transition: opacity 0.2s;
}
.layout-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px hsla(224,88%,62%,0.18);
}
.layout-btn:hover::before { opacity: 1; }
.layout-btn.active {
    border-color: var(--primary);
    background: hsla(224,88%,62%,0.1);
    color: var(--primary);
    box-shadow: 0 0 0 3px hsla(224,88%,62%,0.15), 0 4px 16px hsla(224,88%,62%,0.2);
}
.layout-btn.active::before { opacity: 1; }

/* Mini page inside button */
.lp-page {
    width: 38px;
    height: 50px;
    background: hsla(220,15%,96%,0.06);
    border: 1.5px solid var(--border-hover);
    border-radius: 4px;
    padding: 3px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    transition: var(--transition);
    position: relative;
    z-index: 1;
}
.lp-page.lp-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
}
.lp-guide {
    flex: 1;
    background: currentColor;
    border-radius: 2px;
    opacity: 0.35;
    transition: opacity 0.2s;
    min-height: 0;
}
.layout-btn:hover .lp-guide,
.layout-btn.active .lp-guide {
    opacity: 0.7;
}
.layout-btn.active .lp-page {
    border-color: var(--primary);
    background: hsla(224,88%,62%,0.06);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .header-inner { padding: 0.8rem 1.2rem; }
    .hero { padding: 2.5rem 1.2rem 1.5rem; }
    .main { padding: 0 1.2rem 3rem; gap: 1rem; }
    .preview-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
    .settings-row { gap: 1rem; }
    .preview-actions { gap: 0.4rem; }
    .btn-primary, .btn-ghost, .btn-danger-ghost { padding: 0.55rem 0.9rem; font-size: 0.82rem; }
    .upload-card { padding: 2rem 1.2rem; }
    .upload-title { font-size: 1.2rem; }
    .step-arrow { display: none; }
    .hero-title { font-size: 1.7rem; }
}
@media (max-width: 480px) {
    .preview-grid { grid-template-columns: 1fr 1fr; }
    .header-badge { display: none; }
    .settings-card, .preview-card { padding: 1.2rem; }
}