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

html {
    font-size: 16px;
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 1rem;
    line-height: 1.5;
    color: #202020;
    background: #f9f9f9;
}

/* ─── NAV ─────────────────────────────────────────────────────────────────── */

.mainNav {
    display: flex;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: #050c16;
    border-bottom: 1px solid #1f2937;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
}

.mainNav__link {
    color: #f9f9f9;
    text-decoration: none;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 0.5rem;
    transition: background 0.15s;
}

.mainNav__link:hover {
    background: #1f2937;
}

/* ─── APP ─────────────────────────────────────────────────────────────────── */

#app {
    padding-top: 48px;
}

/* ─── CHAT ────────────────────────────────────────────────────────────────── */

.chatApp {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 48px);
    background: #fff;
    max-width: 64rem;
    margin: 0 auto;
    border-left: 1px solid #e5e7eb;
    border-right: 1px solid #e5e7eb;
    background-image: url('/assets/breaking-bad.jpg');
    background-size: cover;
    background-position: center;
}

.chatHeader {
    padding: 1rem;
    border-bottom: 1px solid #e5e7eb;
    background: rgba(243, 244, 246, 0.9);
}

.chatHeader__title {
    font-size: 1.25rem;
    font-weight: 600;
}

.chatHeader__subtitle {
    font-size: 0.875rem;
    color: #6b7280;
}

.chatMessages {
    flex: 1;
    padding: 1rem;
    overflow: auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    overscroll-behavior-y: contain;
}

.chatComposer {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem;
    border-top: 1px solid #e5e7eb;
    background: rgba(215, 224, 233, 0.95);
}

/* ─── MESSAGES ────────────────────────────────────────────────────────────── */

.message {
    max-width: 85%;
    padding: 0.75rem 1rem;
    border-radius: 1rem;
    word-wrap: break-word;
}

.message--character {
    align-self: flex-start;
    background: #ffffff;
    color: #010102;
    border: 1px solid #ffffff;
}

.message--user {
    align-self: flex-end;
    background: #6cde6e;
    color: #000000;
}

.message--typing {
    font-style: italic;
    opacity: 0.7;
    animation: typing-pulse 1.2s infinite;
}

@keyframes typing-pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.9; }
}

.message--error {
    align-self: center;
    max-width: 90%;
    background: #fbe9e9;
    color: #b91c1c;
    border: 1px solid #dfcdcd;
    font-size: 0.9rem;
    text-align: center;
}

/* ─── COMPOSER ────────────────────────────────────────────────────────────── */

.chatComposer__input {
    flex: 1;
    min-width: 0;
    padding: 0.75rem;
    font-family: inherit;
    font-size: 1rem;
    border: 1px solid #e5e7eb;
    border-radius: 0.75rem;
    outline: none;
}

.chatComposer__input:focus {
    border-color: #3b82f6;
}

.chatComposer__send {
    padding: 0.75rem 1.25rem;
    font-family: inherit;
    font-size: 1rem;
    color: #fff;
    background: #3b82f6;
    border: 0;
    border-radius: 0.75rem;
    cursor: pointer;
    white-space: nowrap;
}

.chatComposer__send:hover {
    background: #2563eb;
}

.chatComposer__input:disabled,
.chatComposer__send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ─── BOTONES ─────────────────────────────────────────────────────────────── */

.btn {
    display: inline-block;
    padding: 0.75rem 1.25rem;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 0.75rem;
    cursor: pointer;
    margin-top: 1rem;
}

.btn--primary {
    color: #fff;
    background: #3b82f6;
    border: 0;
}

.btn--primary:hover {
    background: #2563eb;
}

/* ─── HOME ────────────────────────────────────────────────────────────────── */

.view--home {
    min-height: calc(100vh - 48px);
    background-image: url('/assets/walter-bg.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding: 1.5rem;
}

.view--home .home__card {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 2rem;
    max-width: 100%;
    text-align: center;
}

.view--home h1 {
    color: #fff;
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.view--home p {
    color: #d1d5db;
    margin-bottom: 0.75rem;
}

.view--home .btn--primary {
    margin-top: 1.25rem;
    width: 100%;
    text-align: center;
}

@media (min-width: 768px) {
    .view--home {
        padding: 2rem;
    }

    .view--home .home__card {
        max-width: 28rem;
    }
}

@media (min-width: 1024px) {
    .view--home {
        align-items: flex-start;
        padding: 7rem;
    }

    .view--home .home__card {
        max-width: 25rem;
        text-align: left;
    }

    .view--home .btn--primary {
        width: auto;
    }
}

/* ─── ABOUT ───────────────────────────────────────────────────────────────── */

.view--about {
    min-height: calc(100vh - 48px);
    background-image: url('/assets/camioneta.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding: 1.5rem;
}

.about__card {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 2rem;
    width: 100%;
    max-width: 36rem;
    text-align: center;
    color: #fff;
}

.about__card h1 {
    color: #fff;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.about__card p {
    color: #d1d5db;
    margin-bottom: 0.75rem;
}

.about__card strong {
    color: #fff;
}

/* ─── NOT FOUND ───────────────────────────────────────────────────────────── */

.view--notFound {
    padding: 2rem 1rem;
    max-width: 40rem;
    margin: 0 auto;
    text-align: center;
}

.view--notFound h1 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.view--notFound p {
    margin-bottom: 1rem;
    color: #6b7280;
}

/* ─── MEDIA QUERIES GENERALES ─────────────────────────────────────────────── */

@media (min-width: 768px) {
    .chatHeader {
        padding: 1.25rem 1.5rem;
    }

    .chatMessages {
        padding: 1.5rem;
        gap: 1rem;
    }

    .chatComposer {
        padding: 1rem 1.5rem;
    }

    .message {
        max-width: 75%;
    }
}

@media (min-width: 1024px) {
    body {
        background: #f3f4f6;
    }

    .chatHeader {
        padding: 1.5rem 2rem;
    }

    .chatMessages {
        padding: 2rem;
    }

    .chatComposer {
        padding: 1.5rem 2rem;
    }

    .message {
        max-width: 60%;
    }
}