/* === TIPOGRAFÍA INTER (Google Fonts) === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap');

:root {
    --color-bg: #ffffff;
    --color-text: #000000;
    --color-text-muted: #666666;
    --color-border: #e5e5e5;
    --color-accent: #000000; /* Todo a blanco y negro para máximo contraste */
    --font-main: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* === LAYOUT ARQUITECTÓNICO (SPLIT SCREEN) === */
.split-layout {
    display: flex;
    min-height: 100vh;
    width: 100vw;
}

/* MITAD IZQUIERDA: SLIDER FOTOGRÁFICO */
.visual-section {
    width: 50%;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    background-color: #000;
    z-index: 1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 2s ease-in-out;
    z-index: 1;
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

.visual-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.2) 30%, rgba(0,0,0,0.4) 100%);
    z-index: 3;
}

.logo-container {
    position: absolute;
    bottom: 4rem;
    left: 4rem;
    z-index: 4;
}

.logo-container img {
    width: 220px; /* Tamaño del logo de Callahan */
}

/* MITAD DERECHA: FORMULARIO GEOMÉTRICO */
.content-section {
    width: 50%;
    margin-left: 50%; /* Compensa el fixed de la izquierda */
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 6rem 5rem;
    background-color: var(--color-bg);
}

.form-wrapper {
    max-width: 600px;
    width: 100%;
}

.step {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.step.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === TIPOGRAFÍA Y ESPACIADOS === */
.step-indicator {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 2rem;
    color: var(--color-text-muted);
}

.step-title {
    font-weight: 500;
    font-size: 2.2rem;
    letter-spacing: -1px;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.step-subtitle {
    font-weight: 300;
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 4rem;
}

/* === INPUTS ESTILO EDITORIAL === */
.input-group {
    margin-bottom: 3.5rem;
}

.input-group label {
    display: block;
    font-weight: 500;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.input-group p.help-text {
    font-weight: 300;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

input[type="text"],
input[type="email"],
textarea {
    width: 100%;
    padding: 1rem 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border);
    font-family: var(--font-main);
    font-weight: 300;
    font-size: 1.1rem;
    color: var(--color-text);
    transition: border-color 0.3s ease;
    border-radius: 0; /* Geometría pura */
}

input:focus,
textarea:focus {
    outline: none;
    border-bottom: 1px solid var(--color-accent);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

/* === BOTONES MINIMALISTAS === */
.btn-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

.btn {
    padding: 18px 40px;
    font-family: var(--font-main);
    font-weight: 500;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    border-radius: 0;
}

.btn-next {
    background-color: var(--color-accent);
    color: var(--color-bg);
    margin-left: auto;
}

.btn-next:hover {
    background-color: #333;
}

.btn-prev {
    background-color: transparent;
    color: var(--color-text-muted);
    padding: 18px 0;
}

.btn-prev:hover {
    color: var(--color-accent);
}

.agency-footer {
    margin-top: 6rem;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

/* === RESPONSIVE === */
@media (max-width: 1000px) {
    .split-layout { flex-direction: column; }
    .visual-section { width: 100%; height: 40vh; position: relative; }
    .content-section { width: 100%; margin-left: 0; min-height: 60vh; padding: 4rem 2rem; }
    .logo-container { bottom: 2rem; left: 2rem; }
    .logo-container img { width: 150px; }
}