/* ===============================
   Variables globales
================================ */
:root {
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --card-bg: rgba(255,255,255,0.95);
    --muted: #7f8c8d;
    --primary: #3498db;
    --accent: #27ae60;
    --shadow: 0 8px 32px rgba(0,0,0,0.08);
    --radius: 14px;
}

/* ===============================
   Reset y estilos base
================================ */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-gradient);
    color: #333;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

/* ===============================
   Layout general
================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: clamp(12px, 2.5vw, 28px);
}

.header {
    text-align: center;
    margin-bottom: 28px;
    animation: fadeInDown 0.8s;
}

.header h1 {
    font-size: clamp(1.6rem, 3.2vw, 2.6rem);
    color: #2c3e50;
    font-weight: 300;
    margin-bottom: 8px;
}

.header p {
    color: var(--muted);
    font-size: clamp(.9rem, 1.6vw, 1.1rem);
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 32px;
    align-items: start;
}

/* ===============================
   Tarjetas y formularios
================================ */
.form-section,
.preview-section {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255,255,255,0.4);
}

.form-group {
    margin-bottom: 22px;
}

.form-group h3 {
    color: #2c3e50;
    margin-bottom: 12px;
    font-size: 1.05rem;
}

.input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.input-field {
    width: 100%;
    padding: 12px 14px;
    border: 2px solid #ecf0f1;
    border-radius: 12px;
    font-size: 1rem;
    background: #fff;
    outline: none;
    transition: all .2s;
}

.input-field:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(52,152,219,0.08);
    transform: translateY(-1px);
}

/* ===============================
   Opciones y tamaños
================================ */
.options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.option-card {
    background: white;
    border: 2px solid #ecf0f1;
    border-radius: 12px;
    padding: 14px;
    text-align: center;
    cursor: pointer;
    transition: all .25s;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 92px;
}

.option-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 18px rgba(0,0,0,0.06);
}

.option-card.selected {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--primary), #2980b9);
    color: #fff;
    transform: scale(1.03);
}

.option-icon {
    font-size: 1.6rem;
    margin-bottom: 6px;
}

.option-name {
    font-size: 0.95rem;
    font-weight: 500;
}

.size-options {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.size-option {
    background: white;
    border: 2px solid #ecf0f1;
    border-radius: 50%;
    width: 72px;
    height: 72px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.size-option.selected {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--primary), #2980b9);
    color: #fff;
}

/* ===============================
   Vista previa y resumen
================================ */
.preview-title {
    text-align: center;
    color: #2c3e50;
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.budin-preview {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 18px;
    text-align: center;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.budin-base {
    width: clamp(90px, 18vw, 140px);
    height: clamp(60px, 12vw, 100px);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    transition: all .45s;
}

.ingredients-display {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
}

.ingredient-item {
    display: flex;
    align-items: center;
    background: rgba(52,152,219,0.08);
    border-radius: 20px;
    padding: 6px 10px;
    font-size: 0.82rem;
    color: #2980b9;
}

.order-summary {
    margin-top: 14px;
    padding: 14px;
    background: #ffffff;
    border-radius: 10px;
}

.price-display {
    text-align: center;
    font-size: 1.5rem;
    color: var(--accent);
    font-weight: 700;
    margin: 12px 0;
}

.order-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--accent), #2ecc71);
    color: #fff;
    border: none;
    padding: 12px;
    border-radius: 12px;
    font-size: 1.02rem;
    cursor: pointer;
}

.order-btn:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
}

.cvu-container {
    background: #f8f9fa;
    border: 2px dashed var(--primary);
    border-radius: 12px;
    padding: 12px;
    text-align: center;
    margin-top: 10px;
}

.cvu-number {
    font-family: monospace;
    font-weight: 700;
    padding: 8px 12px;
    border-radius: 8px;
    display: inline-block;
    cursor: pointer;
    color: #2980b9;
}

/* ===============================
   Animación de cocina (overlay)
================================ */
.cooking-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.72);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1200;
}

.cooking-content {
    background: white;
    border-radius: 14px;
    padding: 26px;
    text-align: center;
    max-width: 420px;
    width: 90%;
}

.oven-icon {
    font-size: 3.5rem;
    margin-bottom: 12px;
}

/* ===============================
   Animaciones y helpers
================================ */
.shake {
    animation: shake .5s;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: none; }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

/* ===============================
   Media queries
================================ */
@media (max-width: 1100px) {
    .main-content { grid-template-columns: 1fr 320px; gap: 20px; }
    .option-card { min-height: 84px; }
}

@media (max-width: 900px) {
    .main-content { grid-template-columns: 1fr; }
    .preview-section { order: 2; position: static; top: auto; }
    .form-section { order: 1; }
    .option-card { min-height: 80px; }
    .options-grid { grid-template-columns: repeat(2, 1fr); }
    .input-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
    .options-grid { grid-template-columns: 1fr; }
    .size-options { justify-content: center; }
    .size-option { width: 64px; height: 64px; }
    .budin-base { width: clamp(72px, 32vw, 110px); height: clamp(52px, 20vw, 80px); }
    .header h1 { font-size: 1.6rem; }
    .preview-title { font-size: 1.05rem; }
    .ingredient-item { font-size: 0.78rem; }
}

@media (pointer: coarse) {
    .option-card, .size-option { padding: 16px; }
}