/* =============================================
   Sua Legal - Estilos Globales (Moderno)
   ============================================= */

/* 1. Variables */
:root {
    --color-primary: #1B3A5C;
    --color-primary-dark: #122840;
    --color-secondary: #C9A84C;
    --color-secondary-light: #d4b965;
    --color-bg-light: #FAFAFA;
    --color-bg-alt: #F0F0F0;
    --color-text: #2D2D2D;
    --color-text-light: #666;
    --color-error: #D32F2F;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Open Sans', sans-serif;
    --nav-height: 70px;
    --max-width: 1200px;
    --radius: 12px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 2. Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg-light);
    line-height: 1.7;
    font-size: 1rem;
    padding-top: var(--nav-height);
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

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

a:hover { color: var(--color-secondary); }
a:focus { outline: 2px solid var(--color-secondary); outline-offset: 2px; }

.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;
}

/* 3. Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    line-height: 1.3;
    margin-bottom: 0.75em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 700; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 700; text-align: center; margin-bottom: 1rem; }
h3 { font-size: 1.35rem; font-weight: 600; }
p { margin-bottom: 1rem; }

.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
}

/* 4. Layout */
main { max-width: 100%; margin: 0 auto; }

section {
    padding: 5rem 1.5rem;
}

/* 5. Components */

/* --- Navigation --- */
header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(27, 58, 92, 0.95);
}

header nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 2rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-secondary);
    text-decoration: none;
}

.nav-logo:hover { color: #fff; }

.nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px; height: 44px;
    background: none; border: none;
    cursor: pointer; padding: 0;
}

.nav-toggle:focus { outline: 2px solid var(--color-secondary); outline-offset: 2px; }

.hamburger {
    display: block; position: relative;
    width: 24px; height: 3px;
    background-color: #fff; border-radius: 2px;
    transition: var(--transition);
}

.hamburger::before, .hamburger::after {
    content: ''; position: absolute; left: 0;
    width: 24px; height: 3px;
    background-color: #fff; border-radius: 2px;
    transition: var(--transition);
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

.nav-menu {
    position: absolute;
    top: var(--nav-height); left: 0; width: 100%;
    background-color: var(--color-primary);
    display: flex; flex-direction: column;
    align-items: center; gap: 0; padding: 1rem 0;
    opacity: 0; transform: translateY(-10px);
    visibility: hidden;
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.nav-menu.active {
    opacity: 1; transform: translateY(0); visibility: visible;
}

.nav-menu li { width: 100%; text-align: center; }

.nav-menu a {
    display: block; padding: 0.85rem 1.5rem;
    color: #fff; text-decoration: none; font-size: 1rem;
    transition: color var(--transition), background-color var(--transition);
}

.nav-menu a:hover { color: var(--color-secondary); background-color: rgba(255,255,255,0.05); }
.nav-menu a:focus { outline: 2px solid var(--color-secondary); outline-offset: -2px; }
.nav-menu a.active { color: var(--color-secondary); font-weight: 600; }

/* --- Hero --- */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background: url('https://images.unsplash.com/photo-1589829545856-d10d557cf95f?w=1600&q=80') center/cover no-repeat;
    padding: 0 1.5rem;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(27,58,92,0.85) 0%, rgba(18,40,64,0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero h1 {
    color: #fff;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: var(--color-secondary);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-value {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.9);
    max-width: 550px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

/* --- Services (Expandable) --- */
#servicios {
    background-color: var(--color-bg-alt);
}

.servicios-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.servicio-card {
    background-color: #fff;
    padding: 1.5rem 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: box-shadow var(--transition), transform var(--transition);
    cursor: pointer;
    border-left: 4px solid transparent;
}

.servicio-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.servicio-card[aria-expanded="true"] {
    border-left-color: var(--color-secondary);
}

.servicio-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.servicio-header h3 {
    flex: 1;
    margin-bottom: 0;
    font-size: 1.2rem;
}

.servicio-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.servicio-toggle {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-secondary);
    transition: transform var(--transition);
    width: 30px; height: 30px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: var(--color-bg-alt);
}

.servicio-card[aria-expanded="true"] .servicio-toggle {
    transform: rotate(45deg);
}

.servicio-summary {
    color: var(--color-text-light);
    margin: 0.75rem 0 0 3.5rem;
    font-size: 0.95rem;
}

.servicio-detail {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    margin-left: 3.5rem;
    padding-top: 0;
}

.servicio-card[aria-expanded="true"] .servicio-detail {
    max-height: 600px;
    padding-top: 1rem;
}

.servicio-detail p {
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.servicio-detail ul {
    padding-left: 1.25rem;
    list-style: disc;
}

.servicio-detail ul li {
    margin-bottom: 0.4rem;
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* --- About --- */
#acerca {
    background-color: var(--color-bg-light);
}

.acerca-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
}

#acerca img {
    width: 250px; height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--color-secondary);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.acerca-text h3 {
    color: var(--color-primary);
    margin-bottom: 0.75rem;
    font-size: 1.5rem;
}

.specialization {
    border-left: 4px solid var(--color-secondary);
    padding: 1rem 1.25rem;
    background: linear-gradient(135deg, rgba(201,168,76,0.08) 0%, rgba(201,168,76,0.03) 100%);
    font-style: italic;
    font-size: 1.05rem;
    margin-top: 0.5rem;
    border-radius: 0 var(--radius) var(--radius) 0;
}

.acerca-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
    padding: 1rem 1.5rem;
    background: var(--color-bg-alt);
    border-radius: var(--radius);
    min-width: 120px;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-secondary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* --- CTA Banner --- */
.cta-banner {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #fff;
    text-align: center;
    padding: 4rem 1.5rem;
}

.cta-banner h2 {
    color: #fff;
    margin-bottom: 0.75rem;
}

.cta-banner p {
    color: rgba(255,255,255,0.85);
    max-width: 500px;
    margin: 0 auto 2rem;
    font-size: 1.1rem;
}

.btn-light {
    background-color: var(--color-secondary);
    color: #fff;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.btn-light:hover { background-color: var(--color-secondary-light); }

/* --- Contact --- */
#contacto {
    background-color: var(--color-bg-alt);
}

.contacto-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    gap: 3rem;
}

.contacto-info h3 {
    margin-bottom: 0.5rem;
}

.contacto-desc {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}

.contacto-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contacto-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.contacto-icon {
    font-size: 1.3rem;
}

.contacto-item a {
    font-weight: 600;
    color: var(--color-primary);
}

.contacto-item a:hover {
    color: var(--color-secondary);
}

/* --- Form --- */
.contacto-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    background: #fff;
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.form-group label {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    padding: 0.85rem 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    background-color: #fafafa;
    transition: border-color var(--transition), background-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    background-color: #fff;
}

.form-group input.error,
.form-group textarea.error {
    border-color: var(--color-error);
}

.form-group textarea {
    min-height: 130px;
    resize: vertical;
}

.error-message {
    color: var(--color-error);
    font-size: 0.85rem;
    min-height: 1.2em;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.error-message::before { content: ""; }
.error-message:not(:empty)::before { content: "⚠ "; }

.form-success {
    padding: 1rem;
    background-color: #e8f5e9;
    border: 1px solid #388e3c;
    border-radius: 8px;
    color: #2e7d32;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-success::before { content: "✓ "; font-weight: 700; font-size: 1.1rem; }

.form-error-global {
    padding: 1rem;
    background-color: #fdecea;
    border: 1px solid var(--color-error);
    border-radius: 8px;
    color: var(--color-error);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-error-global::before { content: "⚠ "; font-weight: 700; font-size: 1.1rem; }

/* --- Button --- */
.btn-primary {
    display: inline-block;
    padding: 0.95rem 2rem;
    background-color: var(--color-secondary);
    color: #fff;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 4px 12px rgba(201, 168, 76, 0.3);
}

.btn-primary:hover {
    background-color: #b8943f;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(201, 168, 76, 0.4);
}

.btn-primary:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    background-color: #ccc;
    color: #666;
    cursor: not-allowed;
    opacity: 0.7;
    box-shadow: none;
}

/* --- Footer --- */
footer {
    background-color: var(--color-primary);
    color: #fff;
    padding: 3rem 1.5rem 1.5rem;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255,255,255,0.15);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-secondary);
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    margin-top: 0.25rem;
    margin-bottom: 0;
}

.footer-contact {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

footer a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    transition: color var(--transition);
}

footer a:hover { color: var(--color-secondary); }
footer a:focus { outline: 2px solid var(--color-secondary); outline-offset: 2px; }

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer-bottom p {
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
    margin-bottom: 0;
}

/* 6. Interactive states - covered inline above */

/* 7. Media Queries */
@media (max-width: 767px) {
    .nav-menu a { min-height: 44px; display: flex; align-items: center; justify-content: center; }
    .btn-primary { min-height: 44px; }
    .contacto-item { min-height: 44px; }
    .form-group input, .form-group textarea { min-height: 44px; }
    .servicio-summary { margin-left: 0; }
    .servicio-detail { margin-left: 0; }
    .acerca-stats { justify-content: center; }
    .footer-content { flex-direction: column; text-align: center; }
    .footer-contact { justify-content: center; }
}

@media (min-width: 768px) {
    .nav-toggle { display: none; }
    .nav-menu {
        position: static; flex-direction: row; width: auto;
        padding: 0; opacity: 1; transform: none;
        visibility: visible; background-color: transparent; gap: 0.25rem;
    }
    .nav-menu li { width: auto; }
    .nav-menu a { padding: 0.5rem 1rem; }

    .servicios-grid { grid-template-columns: repeat(2, 1fr); }
    .acerca-content { flex-direction: row; align-items: flex-start; }
    #acerca img { flex-shrink: 0; }
    .contacto-content { grid-template-columns: 1fr 1.5fr; align-items: start; }
}

@media (min-width: 1200px) {
    .servicios-grid { grid-template-columns: repeat(3, 1fr); }
}