/* ============================================================
   HEALTHTOOLS — Dark Glassmorphism · Verde Médico
   Dr. Alejandro Martinez R.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=JetBrains+Mono:wght@400;500;700&family=Geist:wght@300;400;500;600;700&display=swap');

/* === Tokens === */
:root {
    /* Base oscura */
    --ink-0:           #0a0d0c;        /* fondo profundo */
    --ink-1:           #11161a;        /* base */
    --ink-2:           #161c20;        /* surface base */
    --ink-3:           #1d2429;        /* surface elevated */
    --hairline:        rgba(232, 232, 220, 0.08);
    --hairline-strong: rgba(232, 232, 220, 0.14);

    /* Cremas / marfil */
    --cream:           #f4f1e8;
    --cream-mute:      rgba(244, 241, 232, 0.62);
    --cream-faint:     rgba(244, 241, 232, 0.38);
    --cream-trace:     rgba(244, 241, 232, 0.08);

    /* Verde médico - el acento */
    --green:           #4ade80;        /* verde brillante */
    --green-glow:      #86efac;
    --green-deep:      #16a34a;
    --green-faint:     rgba(74, 222, 128, 0.12);
    --green-trace:     rgba(74, 222, 128, 0.04);

    /* Acentos secundarios para semáforo */
    --amber:           #fbbf24;
    --rose:            #fb7185;
    --sky:             #60a5fa;

    /* Per-categoría (subtonos) */
    --gineco:          #f0abfc;        /* rosa pálido */
    --urg:             #fb7185;        /* coral */
    --ped:             #60a5fa;        /* cian-azul */

    /* Tipografías */
    --font-display:    'Instrument Serif', Georgia, serif;
    --font-body:       'Geist', -apple-system, system-ui, sans-serif;
    --font-mono:       'JetBrains Mono', ui-monospace, monospace;

    /* Espaciado y radio */
    --r-sm: 6px;
    --r-md: 12px;
    --r-lg: 20px;
    --r-xl: 28px;
    --r-full: 999px;

    /* Sombras / glow */
    --glow-sm:  0 0 0 1px var(--green-faint), 0 0 18px rgba(74, 222, 128, 0.10);
    --glow-md:  0 0 0 1px rgba(74, 222, 128, 0.20), 0 0 40px rgba(74, 222, 128, 0.18);
    --shadow-deep: 0 30px 80px -20px rgba(0, 0, 0, 0.7);

    /* Easing */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* === Reset & base === */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    font-weight: 400;
    color: var(--cream);
    background: var(--ink-0);
    line-height: 1.55;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    position: relative;
}

/* Capa atmosférica: blobs verdes desenfocados */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 800px 600px at 15% 10%,  rgba(74, 222, 128, 0.10) 0%, transparent 50%),
        radial-gradient(ellipse 700px 500px at 90% 90%,  rgba(74, 222, 128, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 500px 400px at 50% 50%,  rgba(96, 165, 250, 0.04) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
    animation: drift 24s ease-in-out infinite alternate;
}

/* Grain noise */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.04 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    pointer-events: none;
    opacity: 0.4;
    z-index: 1;
    mix-blend-mode: overlay;
}

@keyframes drift {
    0%   { transform: translate(0,0) scale(1); }
    100% { transform: translate(-30px, 20px) scale(1.05); }
}

/* === Layout === */
.page {
    position: relative;
    z-index: 2;
    max-width: 720px;
    margin: 0 auto;
    padding: 32px 24px 100px;
}

/* === Header de herramienta === */
.tool-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    animation: fadeUp 600ms var(--ease-out) both;
}
.home-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--cream-mute);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.01em;
    padding: 9px 16px 9px 12px;
    border-radius: var(--r-full);
    background: rgba(244, 241, 232, 0.04);
    border: 1px solid var(--hairline);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all 300ms var(--ease-out);
}
.home-link:hover {
    color: var(--cream);
    background: rgba(244, 241, 232, 0.08);
    border-color: var(--hairline-strong);
    transform: translateX(-2px);
}
.home-link svg { width: 14px; height: 14px; transition: transform 300ms var(--ease-out); }
.home-link:hover svg { transform: translateX(-2px); }

.tool-tag {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--cream-faint);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.tool-tag::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 12px var(--green);
    animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.5; transform: scale(0.8); }
}

/* === Card glassmorphism === */
.card {
    position: relative;
    background: linear-gradient(180deg, rgba(29, 36, 41, 0.7) 0%, rgba(22, 28, 32, 0.6) 100%);
    backdrop-filter: blur(24px) saturate(140%);
    -webkit-backdrop-filter: blur(24px) saturate(140%);
    border: 1px solid var(--hairline);
    border-radius: var(--r-lg);
    padding: 40px 36px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-deep), inset 0 1px 0 rgba(244, 241, 232, 0.04);
    animation: fadeUp 700ms var(--ease-out) both;
    animation-delay: 100ms;
    overflow: hidden;
}
.card::before {
    content: '';
    position: absolute;
    top: 0; left: 20%; right: 20%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--green), transparent);
    opacity: 0.5;
}
.card + .card { animation-delay: 200ms; }
.card + .card + .card { animation-delay: 300ms; }

/* Hero image dentro de tarjeta */
.tool-hero {
    display: block;
    margin: 0 auto 28px;
    max-width: 320px;
    width: 100%;
    height: auto;
    filter: brightness(1.1) drop-shadow(0 8px 30px rgba(74, 222, 128, 0.15));
    animation: float 6s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-8px); }
}

/* === Tipografía === */
h1 {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(32px, 5vw, 44px);
    line-height: 1.05;
    letter-spacing: -0.015em;
    color: var(--cream);
    margin: 0 0 14px;
    text-align: center;
}
h1 em {
    font-style: italic;
    color: var(--green);
    text-shadow: 0 0 30px rgba(74, 222, 128, 0.4);
}
h2 {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: 26px;
    color: var(--cream);
    margin: 0 0 12px;
    letter-spacing: -0.01em;
}
h3 {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--green);
    margin: 28px 0 12px;
}
h4 {
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 400;
    color: var(--cream-mute);
    text-align: center;
    line-height: 1.6;
    margin: 0 auto 32px;
    max-width: 540px;
}
h4 strong {
    color: var(--cream);
    font-weight: 500;
    border-bottom: 1px dashed var(--green-faint);
    padding-bottom: 1px;
}
p {
    margin: 0 0 12px;
    color: var(--cream);
}

/* === Inputs === */
label {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--cream-mute);
    margin: 22px 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-family: var(--font-mono);
}
label::before {
    content: '◇';
    color: var(--green);
    font-size: 8px;
    opacity: 0.6;
    flex-shrink: 0;
}

input[type="text"],
input[type="number"],
input[type="date"],
select {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
    font-family: var(--font-body);
    color: var(--cream);
    background: rgba(10, 13, 12, 0.5);
    border: 1px solid var(--hairline);
    border-radius: var(--r-md);
    transition: all 240ms var(--ease-out);
    -webkit-appearance: none;
    appearance: none;
}
input::placeholder { color: var(--cream-faint); }
input:focus, select:focus {
    outline: none;
    border-color: var(--green);
    background: rgba(10, 13, 12, 0.7);
    box-shadow: 0 0 0 3px var(--green-trace), 0 0 30px rgba(74, 222, 128, 0.1);
}
input[readonly] {
    background: rgba(10, 13, 12, 0.3);
    color: var(--cream-mute);
    border-style: dashed;
}
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%234ade80' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 44px;
    cursor: pointer;
}
select option {
    background: var(--ink-2);
    color: var(--cream);
}

/* === Primary button === */
.btn,
.card > button,
.card button.btn-primary {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px 28px;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-body);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--ink-0);
    background: var(--green);
    border: none;
    border-radius: var(--r-md);
    cursor: pointer;
    transition: all 280ms var(--ease-out);
    margin-top: 28px;
    overflow: hidden;
    box-shadow: 0 0 0 0 var(--green-faint), 0 8px 24px -8px rgba(74, 222, 128, 0.4);
}
.btn::after,
.card > button::after,
.card button.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.4) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 600ms var(--ease-out);
}
.btn:hover,
.card > button:hover,
.card button.btn-primary:hover {
    background: var(--green-glow);
    transform: translateY(-2px);
    box-shadow: 0 0 0 4px var(--green-faint), 0 14px 30px -10px rgba(74, 222, 128, 0.5);
}
.btn:hover::after,
.card > button:hover::after,
.card button.btn-primary:hover::after { transform: translateX(100%); }
.btn:active { transform: translateY(0); transition-duration: 100ms; }

/* === Botones Sí/No - button-group === */
.question {
    margin-bottom: 22px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--hairline);
}
.question:last-of-type { border-bottom: none; padding-bottom: 0; }
.question label {
    margin-top: 0;
    text-transform: none;
    letter-spacing: 0;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 400;
    color: var(--cream);
    line-height: 1.5;
}
.question label::before { content: none; }

.button-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 14px;
}

.card .button-group button,
.button-group > button {
    position: relative !important;
    width: 100% !important;
    margin-top: 0 !important;
    padding: 13px 18px !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    font-family: var(--font-body) !important;
    letter-spacing: 0.04em !important;
    text-transform: uppercase !important;
    color: var(--cream-mute) !important;
    background: rgba(244, 241, 232, 0.03) !important;
    border: 1px solid var(--hairline) !important;
    border-radius: var(--r-md) !important;
    cursor: pointer;
    transition: all 220ms var(--ease-out) !important;
    overflow: hidden;
    box-shadow: none !important;
    text-transform: none !important;
}

.card .button-group button:hover:not(.selected),
.button-group > button:hover:not(.selected) {
    background: rgba(244, 241, 232, 0.06) !important;
    border-color: var(--hairline-strong) !important;
    color: var(--cream) !important;
    transform: translateY(-1px) !important;
    box-shadow: none !important;
}

.card .button-group button.selected,
.button-group > button.selected {
    background: var(--green) !important;
    color: var(--ink-0) !important;
    border-color: var(--green) !important;
    box-shadow: 0 0 0 3px var(--green-faint), 0 6px 20px -4px rgba(74, 222, 128, 0.4) !important;
    transform: translateY(-1px) !important;
}

/* === Resultados === */
.result, #resultado {
    margin-top: 24px;
    padding: 22px 24px;
    font-size: 15px;
    font-weight: 400;
    text-align: left;
    background: linear-gradient(180deg, rgba(74, 222, 128, 0.06), rgba(74, 222, 128, 0.02));
    border: 1px solid var(--green-faint);
    border-radius: var(--r-md);
    color: var(--cream);
    line-height: 1.6;
    position: relative;
    overflow: hidden;
    animation: resultIn 500ms var(--ease-spring);
}
.result::before, #resultado::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--green);
    box-shadow: 0 0 16px var(--green);
}
.result:empty, #resultado:empty { display: none; }
.result strong, #resultado strong {
    color: var(--green-glow);
    font-weight: 600;
}

@keyframes resultIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.result.success { border-color: var(--green-faint); }
.result.success::before { background: var(--green); }

.result.warning, .result.intermediate-probability {
    background: linear-gradient(180deg, rgba(251, 191, 36, 0.06), rgba(251, 191, 36, 0.02));
    border-color: rgba(251, 191, 36, 0.18);
}
.result.warning::before, .result.intermediate-probability::before {
    background: var(--amber); box-shadow: 0 0 16px var(--amber);
}
.result.warning strong, .result.intermediate-probability strong { color: var(--amber); }

.result.danger, .result.high-probability {
    background: linear-gradient(180deg, rgba(251, 113, 133, 0.08), rgba(251, 113, 133, 0.02));
    border-color: rgba(251, 113, 133, 0.22);
}
.result.danger::before, .result.high-probability::before {
    background: var(--rose); box-shadow: 0 0 16px var(--rose);
}
.result.danger strong, .result.high-probability strong { color: var(--rose); }

.result.low-probability {
    background: linear-gradient(180deg, rgba(74, 222, 128, 0.06), rgba(74, 222, 128, 0.02));
    border-color: var(--green-faint);
}
.result.low-probability::before { background: var(--green); box-shadow: 0 0 16px var(--green); }
.result.low-probability strong { color: var(--green-glow); }

/* === Anchor secundario tipo "más info" === */
.card a:not(.home-link):not(.back-btn) {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--green);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: var(--r-full);
    background: var(--green-trace);
    border: 1px solid var(--green-faint);
    transition: all 240ms var(--ease-out);
    margin-top: 14px;
}
.card a:not(.home-link):not(.back-btn):hover {
    background: var(--green-faint);
    color: var(--green-glow);
    transform: translateX(2px);
}

/* === Listas === */
ul {
    padding-left: 0;
    margin: 14px 0;
    list-style: none;
}
ul li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
    color: var(--cream);
    line-height: 1.5;
}
ul li::before {
    content: '';
    position: absolute;
    left: 0; top: 10px;
    width: 12px; height: 1px;
    background: var(--green);
}

/* === Modal === */
#modaldif, .modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10, 13, 12, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
    animation: fadeIn 240ms var(--ease-out);
}
#modal-content, .modal-content {
    background: linear-gradient(180deg, rgba(29, 36, 41, 0.95), rgba(22, 28, 32, 0.95));
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid var(--hairline-strong);
    padding: 36px;
    border-radius: var(--r-lg);
    max-width: 520px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-deep), inset 0 1px 0 rgba(244, 241, 232, 0.06);
    animation: slideUp 320ms var(--ease-spring);
}
#modal-content h2, .modal-content h2 { margin-top: 0; color: var(--cream); }
.h4-modal { text-align: left; margin: 0 0 12px; color: var(--cream-mute); font-weight: 400; font-family: var(--font-body); font-size: 14px; }
.h5-modal { text-align: left; font-style: italic; color: var(--cream-faint); font-weight: 400; margin-top: 18px; font-size: 13px; }

#close-btn-dif, .close-btn {
    margin-top: 22px;
    width: auto;
    padding: 12px 28px;
    background: rgba(244, 241, 232, 0.06);
    color: var(--cream);
    border: 1px solid var(--hairline);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--r-full);
    cursor: pointer;
    transition: all 240ms var(--ease-out);
}
#close-btn-dif:hover, .close-btn:hover {
    background: rgba(244, 241, 232, 0.1);
    border-color: var(--hairline-strong);
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* === Back btn pie de página === */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 32px;
    padding: 13px 26px;
    background: rgba(244, 241, 232, 0.04);
    color: var(--cream-mute);
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--font-body);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: 1px solid var(--hairline);
    border-radius: var(--r-full);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all 300ms var(--ease-out);
}
.back-btn:hover {
    background: rgba(74, 222, 128, 0.08);
    color: var(--green);
    border-color: var(--green-faint);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px -8px rgba(74, 222, 128, 0.2);
}

/* === Footer === */
.site-footer {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 60px 20px 40px;
    color: var(--cream-faint);
    font-size: 12px;
    margin-top: 60px;
}
.site-footer::before {
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background: var(--green);
    margin: 0 auto 24px;
    box-shadow: 0 0 12px var(--green);
}
.site-footer .credit {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 400;
    color: var(--cream);
    font-size: 18px;
    letter-spacing: 0.01em;
    margin: 0 0 4px;
}
.site-footer small {
    font-family: var(--font-mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--cream-faint);
}

/* === Responsive === */
@media (max-width: 540px) {
    .page { padding: 20px 16px 80px; }
    .card { padding: 28px 22px; border-radius: var(--r-md); }
    h1 { font-size: 28px; }
    .tool-hero { max-width: 220px; }
    .button-group { gap: 8px; }
    .card .button-group button { padding: 11px 14px !important; font-size: 12px !important; }
}

/* === Animaciones de entrada con stagger === */
.stagger > * {
    opacity: 0;
    animation: fadeUp 600ms var(--ease-out) forwards;
}
.stagger > *:nth-child(1) { animation-delay: 80ms; }
.stagger > *:nth-child(2) { animation-delay: 160ms; }
.stagger > *:nth-child(3) { animation-delay: 240ms; }
.stagger > *:nth-child(4) { animation-delay: 320ms; }
.stagger > *:nth-child(5) { animation-delay: 400ms; }
.stagger > *:nth-child(6) { animation-delay: 480ms; }
.stagger > *:nth-child(7) { animation-delay: 560ms; }
.stagger > *:nth-child(8) { animation-delay: 640ms; }
.stagger > *:nth-child(9) { animation-delay: 720ms; }
.stagger > *:nth-child(10){ animation-delay: 800ms; }

/* Para `select` con efecto sutil */
.input-group { margin-bottom: 4px; }

/* Quitar text-transform en label dentro de question */
.question label, .input-group label { text-transform: none; letter-spacing: 0; font-family: var(--font-body); }

/* Override: labels normales SÍ usan mono */
.card > label, .card label:not(.question label):not(.input-group label) {
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-family: var(--font-mono);
}