/**
 * MAJOTUBEUNAIDEA - Base Styles (Premium Edition v4.0)
 * Reset, elementos base y utilidades premium
 */

/* ============================================
   RESET - Modern & Complete
   ============================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background-color: var(--bg-dark);
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* iOS Momentum Scrolling & Safe Areas */
body {
    -webkit-overflow-scrolling: touch;
    -webkit-tap-highlight-color: var(--tap-highlight);
    padding-top: var(--safe-top);
    padding-bottom: var(--safe-bottom);
}

/* ============================================
   BACKGROUND AMBIENT EFFECTS (Premium)
   ============================================ */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
    z-index: -1;
    opacity: 0.7;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 102, 255, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 100% 100%, rgba(255, 45, 85, 0.1), transparent);
    pointer-events: none;
    z-index: -1;
    animation: gradientShift 20s ease-in-out infinite alternate;
}

/* ============================================
   CUSTOM SCROLLBAR (Premium)
   ============================================ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-void);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark));
    border: 2px solid var(--bg-void);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--color-primary-light), var(--color-primary));
    border-width: 1px;
}

/* Firefox Scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-primary) var(--bg-void);
}

/* ============================================
   TIPOGRAFÍA BASE (Premium)
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-family-headings);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    color: var(--text-primary);
}

h1 {
    font-size: var(--font-size-hero);
    font-weight: var(--font-weight-black);
    letter-spacing: var(--letter-spacing-tighter);
}

h2 {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
}

h3 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
}

h4 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
}

p {
    color: var(--text-secondary);
    max-width: 65ch;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-fast);
    position: relative;
}

a:hover {
    color: var(--color-primary-light);
}

strong,
b {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

/* ============================================
   LISTAS
   ============================================ */
ul,
ol {
    list-style: none;
}

/* ============================================
   IMÁGENES & MEDIA (Premium)
   ============================================ */
img,
video {
    max-width: 100%;
    height: auto;
    display: block;
}

img {
    border-radius: var(--radius-sm);
}

/* ============================================
   FORMULARIOS BASE (Premium)
   ============================================ */
button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: none;
    border: none;
    outline: none;
}

button {
    cursor: pointer;
}

/* ============================================
   SELECCIÓN (Premium)
   ============================================ */
::selection {
    background-color: var(--color-primary);
    color: var(--text-primary);
}

::-moz-selection {
    background-color: var(--color-primary);
    color: var(--text-primary);
}

/* ============================================
   FOCUS VISIBLE (Premium)
   ============================================ */
:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
    outline-offset: 2px;
}

/* ============================================
   CONTENEDOR (Premium)
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-xl);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-5);
    padding-right: var(--space-5);
}

.container--narrow {
    max-width: var(--container-lg);
}

.container--wide {
    max-width: var(--container-2xl);
}

.container--full {
    max-width: 100%;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

/* ============================================
   SECCIÓN (Premium)
   ============================================ */
.section {
    padding-top: var(--space-20);
    padding-bottom: var(--space-20);
}

.section--dark {
    background-color: var(--bg-surface);
}

.section--gradient {
    background: var(--gradient-dark);
}

.section--compact {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
}

.section--spacious {
    padding-top: var(--space-24);
    padding-bottom: var(--space-24);
}

/* ============================================
   SR-ONLY (Accessibility)
   ============================================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================
   ANIMACIONES PREMIUM
   ============================================ */
@keyframes gradientShift {
    0% {
        opacity: 0.5;
        transform: scale(1) translate(0, 0);
    }
    50% {
        opacity: 0.7;
    }
    100% {
        opacity: 0.5;
        transform: scale(1.1) translate(-2%, 2%);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

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

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px var(--color-primary-glow);
    }
    50% {
        box-shadow: 0 0 40px var(--color-primary-glow-strong);
    }
}

/* ============================================
   UTILITY CLASSES (Premium)
   ============================================ */
.animate-fade-in {
    animation: fadeIn 0.6s var(--transition-spring) forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s var(--transition-spring) forwards;
}

.animate-fade-in-down {
    animation: fadeInDown 0.8s var(--transition-spring) forwards;
}

.animate-scale-in {
    animation: scaleIn 0.6s var(--transition-spring) forwards;
}

.animate-slide-left {
    animation: slideInLeft 0.8s var(--transition-spring) forwards;
}

.animate-slide-right {
    animation: slideInRight 0.8s var(--transition-spring) forwards;
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-glow {
    animation: glow 3s ease-in-out infinite;
}

/* Staggered animation delays */
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; }

/* Visibility utilities */
.hidden { display: none !important; }
.visible { visibility: visible !important; }
.invisible { visibility: hidden !important; }

/* Text utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--color-accent); }

/* Spacing utilities */
.mt-0 { margin-top: var(--space-0); }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-0 { margin-bottom: var(--space-0); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    body {
        background: white;
        color: black;
    }

    .no-print {
        display: none !important;
    }
}