@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100..900;1,100..900&display=swap');

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body), -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: var(--line-height-base);
    color: var(--color-text);
}

ul {
    list-style: none;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

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

/* ==================== VARIABLES ==================== */
:root {
    /* Colors */
    --color-primary: #092F57;
    --color-primary-hover: #0a3d6d;
    --color-white: #FFFFFF;
    --color-pink: #FA82C3;
    --color-text: #404040;
    --color-text-light: #666666;
    --color-subtitle: #49454F;
    --color-bg-light: #D9D9D9;
    --color-border: #ddd;
    --color-error: #dc3545;
    --color-error-bg: #fff5f5;
    --color-success: #28a745;
    --color-overlay: rgba(0, 0, 0, 0.5);

    /* Typography */
    --font-title: 'Roboto', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-size-base: 1rem;
    --font-size-small: 0.875rem;
    --font-size-large: 1.125rem;
    --font-size-xlarge: 1.25rem;
    --font-size-description: 1.4rem;
    --font-size-title: 2.5rem;
    --font-size-title-desktop: 45px;
    --line-height-base: 1.6;
    --line-height-tight: 1.2;
    --line-height-relaxed: 1.8;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 8px;
    --radius-xl: 10px;
    --radius-full: 50%;

    /* Shadows */
    --shadow: 0px 4px 4px 0px rgba(0, 0, 0, 0.25);
    --header-shadow: 0px 2px 2px 0px rgba(0, 0, 0, 0.15);
    --shadow-menu: -2px 0 10px rgba(0, 0, 0, 0.3);

    /* Transitions */
    --transition-fast: 0.2s;
    --transition-base: 0.3s;
    --transition-ease: ease-in-out;

    /* Layout */
    --max-width-sm: 1050px;
    --max-width-md: 1100px;
    --max-width-lg: 1200px;
    --max-width-xl: 1400px;
    --container-padding: 2rem;

    /* Z-index */
    --z-header: 1000;
    --z-hamburger: 1001;
    --z-menu: 1002;
}

/* ==================== TYPOGRAPHY ==================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-title);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
}

h1 {
    font-size: var(--font-size-title);
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: var(--font-size-xlarge);
}

p {
    font-family: var(--font-body);
}

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

.section-description {
    font-size: var(--font-size-description);
    color: var(--color-subtitle);
    margin: var(--spacing-md) 0 var(--spacing-xl) 0;
    text-align: center;
}

.title {
    color: var(--color-primary);
    font-size: var(--font-size-title-desktop);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0;
    line-height: 52px;
}

/* ==================== HEADER ==================== */
header {
    background-color: var(--color-white);
    padding: var(--spacing-md) var(--container-padding);
    box-shadow: var(--header-shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: var(--z-header);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-width-xl);
    margin: 0 auto;
}

.header-container img {
    margin-left: -16px;
}

/* Botón hamburguesa */
.hamburger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    z-index: var(--z-hamburger);
}

.hamburger-menu svg {
    display: block;
}

/* Botón cerrar menú */
.close-menu {
    display: none;
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.close-menu svg {
    display: block;
}

nav ul {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

nav li {
    transition: transform var(--transition-fast);
}

nav li:hover {
    transform: translateY(-2px);
}

nav a {
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-small);
    transition: color var(--transition-base);
}

nav .developers-link {
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
}

.header-container nav a:hover {
    color: var(--color-primary);
}

.login-button {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 0.625rem var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-small);
    transition: background-color var(--transition-base);
}

.login-button:hover {
    background-color: var(--color-primary-hover);
}

/* ==================== HERO SECTION ==================== */
.hero-section {
    background-image: url('./assets/bg-hero.jpg');
    background-size: cover;
    background-position: left center;
    background-repeat: no-repeat;
    padding: 6rem var(--container-padding);
    text-align: center;
    color: var(--color-white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}

.hero-content {
    max-width: var(--max-width-xl);
    width: 100%;
    margin: 0 auto;
}

.banco-macro-logo {
    margin-bottom: var(--spacing-lg);
    max-width: 200px;
}

.hero-section h1 {
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    text-align: left;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    flex-direction: row;
}

.logo-hero-section {
    display: none;
}

.btn-primary,
.btn-secondary {
    padding: 10px 40px;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

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

/* ==================== HOW IT WORKS SECTION ==================== */
.how-it-works-section {
    padding: var(--spacing-3xl) var(--container-padding);
    text-align: center;
    max-width: var(--max-width-sm);
    margin: 0 auto;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.step {
    background-color: var(--color-primary);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--spacing-xl) var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: transform var(--transition-base);
}

.step:hover {
    transform: translateY(-5px);
}

.step-number {
    display: inline-block;
    font-family: var(--font-title);
    color: var(--color-pink);
    border-radius: var(--radius-full);
    font-size: 3rem;
    font-weight: var(--font-weight-black);
    line-height: 60px;
    margin-bottom: var(--spacing-md);
}

.step h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
    text-align: left;
    line-height: 1.5;
}

.step p {
    color: var(--color-white);
    text-align: left;
    font-family: var(--font-title);
}

/* ==================== PAYMENT METHODS SECTION ==================== */
.payment-methods-section {
    padding: var(--spacing-3xl) var(--container-padding);
    text-align: center;
}

.payment-container {
    box-shadow: var(--shadow);
    padding: var(--spacing-xl);
    max-width: var(--max-width-lg);
    margin: 0 auto;
    border-radius: var(--radius-sm);
}

.payment-methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    max-width: var(--max-width-lg);
    margin: var(--spacing-2xl) auto;
}

.payment-method {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-base);
}

.payment-method:hover {
    transform: translateY(-5px);
}

.payment-header {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 5px;
}

.payment-icon {
    max-width: 40px;
    margin: 0;
}

.payment-method h3 {
    margin: 0;
    color: var(--color-primary);
    font-size: var(--font-size-xlarge);
}

.payment-method p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    text-align: left;
    margin-left: 45px;
}

.payment-logos {
    max-width: 800px;
    margin: var(--spacing-2xl) auto 0;
}

.payment-logos-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
    flex-wrap: wrap;
}

.payment-logos-container img {
    height: 22px;
    width: auto;
    object-fit: contain;
}

/* ==================== SERVICES SECTION (CARDS) ==================== */
.services-section {
    padding: var(--spacing-3xl) var(--container-padding);
    max-width: var(--max-width-lg);
    margin: 0 auto;
}

.horizontal-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: var(--spacing-xl);
}

.bg-card-dark {
    background-color: var(--color-primary);
}

.bg-card-light {
    background-color: var(--color-bg-light);
}

.horizontal-card:nth-child(odd) .card-content {
    order: 2;
}

.horizontal-card:nth-child(odd) .card-content h3,
.horizontal-card:nth-child(odd) .card-content p{
   color: var(--color-primary);
}

.horizontal-card:nth-child(odd) .card-image {
    order: 1;
}

.card-icon {
    width: 50px;
    height: 50px;
    margin-bottom: var(--spacing-md);
}

.card-content h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    font-weight: var(--font-weight-extrabold);
}

.card-content p {
    color: var(--color-white);
    line-height: 1.3;
    font-size: 1.2rem;
}

.card-image {
    width: 100%;
    border-radius: var(--radius-lg);
}

/* ==================== FORM SECTION ==================== */
.form-section {
    padding: 0 var(--container-padding) var(--spacing-3xl) var(--container-padding);
    text-align: center;
}

.form-section h2 {
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
}

.contact-info {
    font-size: var(--font-size-xlarge);
    line-height: var(--line-height-relaxed);
    max-width: 730px;
    margin: 0 auto;
    text-wrap: balance;
    hyphens: auto;
}

.contact-link {
    color: var(--color-primary);
    transition: opacity var(--transition-base);
}

.contact-link:hover {
    opacity: 0.8;
}

.contact-form {
    max-width: var(--max-width-md);
    margin: 0 auto;
    background-color: var(--color-white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    font-family: var(--font-body);
}

.form-group {
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

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

.btn-submit {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius-xl);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    width: 100%;
    transition: background-color var(--transition-base);
}

.btn-submit:hover {
    background-color: var(--color-primary-hover);
}

/* ==================== FORM VALIDATION STYLES ==================== */
.form-group input.invalid,
.form-group textarea.invalid {
    border-color: var(--color-error);
    background-color: var(--color-error-bg);
}

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

.error-message {
    display: none;
    color: var(--color-error);
    font-size: var(--font-size-small);
    margin-top: var(--spacing-xs);
    font-weight: var(--font-weight-medium);
}

/* ==================== FOOTER ==================== */
footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-2xl) var(--container-padding);
}

.footer-container {
    max-width: var(--max-width-xl);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
}

.footer-logo {
    max-width: 175px;
}

.footer-row {
    display: flex;
    gap: 4rem;
}

.footer-container nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
}

.footer-column h4 {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-large);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    align-items: flex-start;
}

.footer-column a {
    transition: opacity var(--transition-base);
    font-weight: var(--font-weight-normal);
}

.footer-column a:hover {
    text-decoration: underline;
}

.footer-social {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: flex-end;
}

.footer-macro-logo {
    max-width: 120px;
}

.social-icons {
    display: flex;
    gap: var(--spacing-md);
}

.social-icons a {
    transition: opacity var(--transition-base);
}

.social-icons a:hover {
    opacity: 0.7;
}

.social-icons img {
    width: 24px;
    height: 24px;
}

/* ==================== RESPONSIVE ==================== */

/* Tablet */
@media (max-width: 1024px) and (min-width: 769px) {
    /* Header */
    nav ul {
        gap: var(--spacing-md);
    }

    nav a {
        font-size: 0.8125rem;
    }

    /* Hero */
    .hero-section {
        padding: 5rem var(--spacing-xl);
    }

    .logo-hero-section {
        display: none;
    }

    h1, .title {
        font-size: 2.25rem;
    }

    .section-description {
        font-size: 1.25rem;
    }

    /* How it works */
    .steps-container {
        gap: var(--spacing-md);
    }

    .step {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    /* Payment Methods */
    .payment-methods {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    /* Services Cards */
    .horizontal-card {
        gap: var(--spacing-xl);
        padding: var(--spacing-xl);
    }

    .card-content p {
        font-size: 1.1rem;
    }

    /* Footer */
    .footer-row {
        gap: var(--spacing-xl);
    }
}

/* Mobile */
@media (max-width: 768px) {
    /* Header Mobile */
    .hamburger-menu,
    .close-menu {
        display: block;
    }

    header {
        padding: var(--spacing-md);
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -65%;
        width: 65%;
        max-width: 600px;
        height: 100vh;
        background-color: var(--color-white);
        transition: right var(--transition-base) var(--transition-ease);
        z-index: var(--z-menu);
        overflow-y: auto;
    }

    .nav-menu .developers-link {
        text-align: center;
    }

    .header-container img {
        margin-left: 0;
    }

    .nav-menu.active {
        right: 0;
        box-shadow: 0 0 0 100vmax var(--color-overlay);
    }

    .nav-menu ul {
        flex-direction: column;
        gap: var(--spacing-xl);
        padding: 5rem var(--spacing-md) var(--spacing-md);
        height: 100%;
        justify-content: flex-start;
    }

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

    .nav-menu a,
    .nav-menu .login-button {
        font-size: var(--font-size-base);
        display: block;
        width: 100%;
    }

    .nav-menu a {
        text-align: right;
    }

    /* Hero */
    .hero-section {
        padding: var(--spacing-3xl) var(--spacing-md);
        background-image: none;
        background-color: #005efe;
    }

    .hero-content {
        padding-top: 60px;
        height: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-between;
        gap: 20px;
    }

    .hero-section h1 {
        text-align: center;
    }

    .hero-buttons {
        align-items: center;
        flex-direction: column;
    }

    .banco-macro-logo {
        margin: 0 auto;
        padding-bottom: 20px;
    }

    .hero-section .logo-hero-section {
        width: 100%;
        max-width: 250px;
        margin: 0;
        display: block;
    }

    h1, .title {
        font-size: 2rem;
        line-height: var(--line-height-tight);
    }

    h2 {
        font-size: 1.75rem;
    }

    .section-description {
        font-size: 1.2rem;
    }

    /* How it works section */
    .how-it-works-section {
        padding: var(--spacing-3xl) var(--spacing-md);
    }

    /* Steps */
    .steps-container {
        grid-template-columns: 1fr;
    }

    /* Payment Methods */
    .payment-methods-section {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .payment-container {
        padding: var(--spacing-md);
    }

    .payment-methods {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .payment-method {
        padding: var(--spacing-md) 0;
    }

    /* Services section */
    .services-section {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    /* Horizontal cards */
    .horizontal-card,
    .horizontal-card:nth-child(odd) {
        grid-template-columns: 1fr;
        padding: var(--spacing-xl);
        gap: var(--spacing-xl);
    }

    .horizontal-card:nth-child(even) .card-content,
    .horizontal-card:nth-child(even) .card-image,
    .horizontal-card:nth-child(odd) .card-content,
    .horizontal-card:nth-child(odd) .card-image {
        order: initial;
    }

    /* Form */
    .form-section {
        padding: 0 var(--spacing-md) var(--spacing-3xl) var(--spacing-md);
    }

    .contact-form {
        padding: var(--spacing-xl);
    }

    .contact-info {
        font-size: var(--font-size-large);
    }    

    /* Footer */
    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .footer-row {
        flex-direction: column;
        gap: var(--spacing-xl);
        align-items: center;
    }

    .footer-container nav {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer-column ul {
        align-items: center;
    }

    .footer-social {
        align-items: center;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    /* Typography */
    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    /* Hero */
    .hero-section {
        padding: var(--spacing-2xl) var(--spacing-md);
    }

    /* Payment Methods */
    .payment-methods {
        gap: var(--spacing-md);
    }

    /* Form */
    .contact-form {
        padding: var(--spacing-lg);
    }

    /* Services */
    .horizontal-card,
    .horizontal-card:nth-child(odd) {
        padding: var(--spacing-lg);
    }
}