/* ==========================================================================
   Portfolio — Lucas Guidel
   Étape 1 : Fondations (reset, variables, typo de base)
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

img,
video {
    display: block;
    max-width: 100%;
    height: auto;
}

button,
input,
textarea,
select {
    font: inherit;
    color: inherit;
}

button {
    background: none;
    border: none;
    cursor: pointer;
}

ul,
ol {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ---------- Variables (palette A — Vice City Violet) ---------- */
:root {
    /* Couleurs */
    --color-bg:          #0a0014;
    --color-bg-elev:     #14002a;
    --color-accent:      #b026ff;
    --color-accent-2:    #ff2bd6;
    --color-text:        #f4e8ff;
    --color-text-dim:    #a98fc7;
    --color-border:      #2d0a4a;

    /* Effets néon */
    --glow-accent:   0 0 8px var(--color-accent),   0 0 18px var(--color-accent);
    --glow-accent-2: 0 0 8px var(--color-accent-2), 0 0 18px var(--color-accent-2);
    --glow-text:     0 0 4px rgba(244, 232, 255, 0.5);

    /* Typographie (placeholder neutre — police principale à choisir plus tard) */
    --font-main: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --fs-base:  1.25rem;
    --fs-small: 1rem;
    --fs-h1:    clamp(2.5rem, 6vw, 5rem);
    --fs-h2:    clamp(1.75rem, 4vw, 3rem);
    --fs-h3:    clamp(1.25rem, 2.5vw, 1.75rem);

    /* Espacements */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-med:  300ms ease;
    --transition-slow: 600ms ease;
}

/* ---------- Typographie & body ---------- */
body {
    min-height: 100vh;
    font-family: var(--font-main);
    font-size: var(--fs-base);
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1,
h2,
h3 {
    font-weight: normal;
    line-height: 1.1;
    letter-spacing: 0.04em;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p {
    line-height: 1.6;
}

/* ---------- États focus & sélection (accessibilité) ---------- */
:focus-visible {
    outline: 2px solid var(--color-accent-2);
    outline-offset: 4px;
}

::selection {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

/* ==========================================================================
   Étape 2 : Landing page — intro Press Start + menu
   ========================================================================== */

/* ---------- Layout général de la landing ---------- */
.landing {
    overflow: hidden;
    height: 100vh;
}

/* ---------- Intro "Press Start" ---------- */
.intro {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: grid;
    place-items: center;
    overflow: hidden;
    background-color: #000;
    transition: opacity var(--transition-slow), visibility 0s var(--transition-slow);
}

.intro.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.intro__video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.intro::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background-color: rgba(10, 0, 20, 0.55);
}

.intro__button {
    position: relative;
    z-index: 2;
    padding: var(--space-md) var(--space-xl);
    background-color: transparent;
    cursor: pointer;
}

.intro__title {
    display: block;
    font-family: 'Press Start 2P', system-ui, monospace;
    font-size: clamp(1.5rem, 5vw, 4rem);
    letter-spacing: 0.05em;
    color: var(--color-text);
    text-shadow: var(--glow-accent);
    animation: press-start-pulse 1.4s ease-in-out infinite;
}

@keyframes press-start-pulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.35; }
}

@media (prefers-reduced-motion: reduce) {
    .intro__title { animation: none; }
    .intro { transition: none; }
}

/* ---------- Menu (état 2) ---------- */
.menu {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    /* Fallback visible tant que la vidéo n'est pas chargée */
    background:
        radial-gradient(ellipse at 50% 80%, rgba(176, 38, 255, 0.25), transparent 60%),
        linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-elev) 100%);
}

.menu__video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.menu__overlay {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(
        180deg,
        rgba(10, 0, 20, 0.55) 0%,
        rgba(10, 0, 20, 0.3) 50%,
        rgba(10, 0, 20, 0.85) 100%
    );
}

.menu__content {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: var(--space-md);
    text-align: center;
}

.menu__title {
    margin-bottom: var(--space-lg);
    font-family: 'Press start 2P', system-ui, sans-serif;
    color: var(--color-text);
    text-shadow: var(--glow-accent);
    font-size: 50px;
}

/* ---------- Navigation menu (style jeu vidéo) ---------- */
.menu__nav {
    align-self: flex-start;
    padding-left: var(--space-lg);
}

.menu__nav ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    align-items: flex-start;
}

.menu__nav a {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    font-family: 'Sixtyfour', system-ui, sans-serif;
    font-size: clamp(2rem, 4vw, 2.75rem);
    color: var(--color-text);
    transition: color var(--transition-fast),
                text-shadow var(--transition-fast);
}

.menu__nav a::before {
    content: '>';
    display: inline-block;
    color: var(--color-accent-2);
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity var(--transition-fast),
                transform var(--transition-fast);
}

.menu__nav a:hover,
.menu__nav a:focus-visible {
    color: var(--color-accent-2);
}

.menu__nav a:hover::before,
.menu__nav a:focus-visible::before {
    opacity: 1;
    transform: translateX(0);
}

/* ---------- Bouton son (toggle vidéo) ---------- */
.sound-toggle {
    position: fixed;
    bottom: var(--space-md);
    right: var(--space-md);
    z-index: 10;
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    color: var(--color-text);
    filter: drop-shadow(0 0 6px rgba(0, 0, 0, 0.85));
    transition: color var(--transition-fast), filter var(--transition-fast);
}

.sound-toggle:hover,
.sound-toggle:focus-visible {
    color: var(--color-accent-2);
    filter: drop-shadow(0 0 8px var(--color-accent-2));
}

.sound-toggle__icon {
    grid-area: 1 / 1;
}

.sound-toggle__icon[data-icon="on"] {
    display: none;
}

.sound-toggle.is-on .sound-toggle__icon[data-icon="muted"] {
    display: none;
}

.sound-toggle.is-on .sound-toggle__icon[data-icon="on"] {
    display: block;
}