/* NAVAL CLUB — Design System
   Paleta derivada del logo: navy institucional + rojo vivo de acento. */

:root {
    /* Navy */
    --navy-950: #090c18;
    --navy-900: #10142a;
    --navy-800: #1b2340;
    --navy-700: #262f52;
    --navy-600: #354168;
    --navy-500: #4c5885;

    /* Rojo (acento) */
    --red-700: #a3211c;
    --red-600: #c62a23;
    --red-500: #e0342b;
    --red-400: #ea5b52;
    --red-050: #fdeceb;

    /* Neutros */
    --white: #ffffff;
    --neutral-50: #f7f6f2;
    --neutral-100: #efece4;
    --neutral-200: #e1ddd0;
    --neutral-300: #c8c2ae;
    --neutral-400: #9d9683;
    --neutral-600: #6b675b;
    --neutral-700: #4a473d;
    --neutral-800: #2c2a24;
    --neutral-900: #1a1915;

    /* Semántico */
    --color-bg: var(--white);
    --color-bg-alt: var(--neutral-50);
    --color-text: var(--navy-900);
    --color-text-muted: var(--neutral-600);
    --color-accent: var(--red-500);
    --color-accent-hover: var(--red-600);
    --color-border: var(--neutral-200);

    /* Tipografía */
    --font-display: 'Oswald', 'Arial Narrow', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Layout */
    --container-max: 1360px;
    --container-pad: clamp(16px, 4vw, 48px);

    /* Espaciado */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;

    /* Radios */
    --radius-sm: 3px;
    --radius-md: 6px;
    --radius-lg: 14px;
    --radius-full: 999px;

    /* Sombras (sutiles) */
    --shadow-sm: 0 1px 2px rgba(16, 20, 42, 0.06);
    --shadow-md: 0 6px 20px rgba(16, 20, 42, 0.08);
    --shadow-lg: 0 16px 40px rgba(16, 20, 42, 0.14);

    /* Transiciones */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 150ms var(--ease);
    --transition-base: 250ms var(--ease);
    --transition-slow: 450ms var(--ease);

    /* Header */
    --header-h: 84px;
    --promo-h: 38px;

    color-scheme: light;
}

/* ==========================================================
   Reset
   ========================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img, picture, video, canvas, svg { display: block; max-width: 100%; }
img { object-fit: cover; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; font-family: var(--font-display); font-weight: 600; letter-spacing: 0.01em; text-transform: uppercase; color: var(--navy-900); }
p { margin: 0; }
table { border-collapse: collapse; width: 100%; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* ==========================================================
   Layout
   ========================================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-pad);
}

.section { padding-block: var(--space-16); }
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}
.section-title { font-size: clamp(22px, 2.6vw, 32px); }
.section-subtitle { color: var(--color-text-muted); font-size: 14px; margin-top: var(--space-2); text-transform: none; }
.eyebrow {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-2);
}

/* ==========================================================
   Botones
   ========================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    height: 48px;
    padding-inline: var(--space-8);
    border-radius: var(--radius-sm);
    font-family: var(--font-display);
    font-size: 13px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 600;
    border: 1px solid transparent;
    transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
    white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--navy-900); color: var(--white); }
.btn-primary:hover { background: var(--red-500); }
.btn-accent { background: var(--red-500); color: var(--white); }
.btn-accent:hover { background: var(--red-600); }
.btn-outline { background: transparent; border-color: var(--navy-900); color: var(--navy-900); }
.btn-outline:hover { background: var(--navy-900); color: var(--white); }
.btn-outline-white { background: transparent; border-color: rgba(255,255,255,0.7); color: var(--white); }
.btn-outline-white:hover { background: var(--white); color: var(--navy-900); }
.btn-sm { height: 38px; padding-inline: var(--space-5); font-size: 12px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: transparent;
    border: none;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
    position: relative;
}
.btn-icon:hover { background: var(--neutral-100); }
.btn-icon svg { width: 20px; height: 20px; }

/* ==========================================================
   Formularios
   ========================================================== */
.field { margin-bottom: var(--space-5); }
.field label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--neutral-700);
    margin-bottom: var(--space-2);
}
.field input, .field select, .field textarea {
    width: 100%;
    height: 48px;
    padding-inline: var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.field textarea { height: auto; padding-block: var(--space-3); resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus {
    outline: none;
    border-color: var(--navy-800);
    box-shadow: 0 0 0 3px rgba(27, 35, 64, 0.1);
}
.field-error { color: var(--red-600); font-size: 12px; margin-top: var(--space-1); }
.field input.has-error, .field select.has-error, .field textarea.has-error { border-color: var(--red-500); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 var(--space-4); }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    border-left-width: 4px;
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: var(--space-5);
    box-shadow: var(--shadow-sm);
    animation: alert-in 300ms var(--ease);
}
.alert::before {
    content: '';
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 1px;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}
.alert-success {
    background: #eaf6ee; color: #1e6b3a; border-color: #bfe6cb; border-left-color: #1e6b3a;
}
.alert-success::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231e6b3a' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Cpath d='m8 12.5 2.8 2.8L16.5 9' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.alert-error {
    background: var(--red-050); color: var(--red-700); border-color: #f3c6c2; border-left-color: var(--red-700);
}
.alert-error::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a3211c' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Cpath d='M12 7.5v6M12 17v.01' stroke-linecap='round'/%3E%3C/svg%3E");
}
@keyframes alert-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) { .alert { animation: none; } }

/* ==========================================================
   Badges / chips
   ========================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    height: 22px;
    padding-inline: var(--space-2);
    border-radius: var(--radius-sm);
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 600;
}
.badge-new { background: var(--navy-900); color: var(--white); }
.badge-sale { background: var(--red-500); color: var(--white); }
.badge-soldout { background: var(--neutral-300); color: var(--neutral-800); }

.chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding-inline: var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    background: var(--white);
    transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}
.chip:hover { border-color: var(--navy-800); }
.chip.is-active { background: var(--navy-900); border-color: var(--navy-900); color: var(--white); }
.chip.is-disabled { color: var(--neutral-400); text-decoration: line-through; cursor: not-allowed; background: var(--neutral-50); }

.swatch {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-full);
    border: 2px solid var(--white);
    box-shadow: 0 0 0 1px var(--color-border);
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
    cursor: pointer;
}
.swatch:hover { transform: scale(1.08); }
.swatch.is-active { box-shadow: 0 0 0 2px var(--navy-900); }

/* ==========================================================
   Skeleton loaders
   ========================================================== */
.skeleton {
    position: relative;
    overflow: hidden;
    background: var(--neutral-100);
}
.skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.65), transparent);
    transform: translateX(-100%);
    animation: skeleton-sweep 1.4s infinite;
}
@keyframes skeleton-sweep { to { transform: translateX(100%); } }

/* ==========================================================
   Reveal on scroll
   ========================================================== */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity var(--transition-slow), transform var(--transition-slow); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ==========================================================
   Utilidades
   ========================================================== */
.visually-hidden {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-2 { grid-template-columns: 1fr; } }
@media (max-width: 430px) { .grid-4 { grid-template-columns: repeat(2, 1fr); gap: var(--space-3); } }