/* ==========================================================================
   Green Bamboo Holdings — Design System & Styles
   ========================================================================== */

:root {
    --color-bamboo: #1B4D3E;
    --color-bamboo-dark: #143A30;
    --color-sage: #4A7C6F;
    --color-sage-light: #6B9A8A;
    --color-bg-tint: #F0F7F4;
    --color-bg-tint-deep: #E3F0EA;
    --color-white: #FFFFFF;
    --color-text: #2D3436;
    --color-text-muted: #636E72;
    --color-border: rgba(27, 77, 62, 0.12);
    --color-error: #C0392B;
    --color-success: #1B4D3E;

    --font-heading: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --shadow-sm: 0 2px 8px rgba(27, 77, 62, 0.06);
    --shadow-md: 0 4px 24px rgba(27, 77, 62, 0.08);
    --shadow-lg: 0 8px 40px rgba(27, 77, 62, 0.12);

    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --header-height: 80px;
    --container-max: 1200px;
    --section-padding: clamp(4rem, 8vw, 7rem);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base
   ========================================================================== */

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--color-sage);
}

ul {
    list-style: none;
}

/* Accessibility
   ========================================================================== */

.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    z-index: 10000;
    padding: 0.75rem 1.25rem;
    background: var(--color-bamboo);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.skip-link:focus {
    top: 1rem;
}

:focus-visible {
    outline: 2px solid var(--color-sage);
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* Typography
   ========================================================================== */

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-bamboo);
}

h1 {
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    letter-spacing: -0.01em;
}

h2 {
    font-size: clamp(1.875rem, 3.5vw, 2.75rem);
    margin-bottom: 1rem;
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
    margin-bottom: 1rem;
}

.text-muted {
    color: var(--color-text-muted);
}

.section-label {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-sage);
    margin-bottom: 0.75rem;
}

/* Layout
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 2rem);
}

.section {
    padding: var(--section-padding) 0;
}

.section--tint {
    background-color: var(--color-bg-tint);
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 3.5rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

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

.btn--primary:hover {
    background-color: var(--color-bamboo-dark);
    border-color: var(--color-bamboo-dark);
    color: var(--color-white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn--secondary {
    background-color: transparent;
    color: var(--color-bamboo);
    border-color: var(--color-bamboo);
}

.btn--secondary:hover {
    background-color: var(--color-bamboo);
    color: var(--color-white);
    transform: translateY(-1px);
}

.btn--full {
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Header
   ========================================================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.header--scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.header__logo img {
    height: 52px;
    width: auto;
}

.header__nav {
    display: none;
    align-items: center;
    gap: 2rem;
}

.header__nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
    padding: 0.25rem 0;
}

.header__nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-bamboo);
    transition: width var(--transition);
}

.header__nav-link:hover,
.header__nav-link--active {
    color: var(--color-bamboo);
}

.header__nav-link:hover::after,
.header__nav-link--active::after {
    width: 100%;
}

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

.header__cta {
    display: none;
}

.header__toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.header__toggle-bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-bamboo);
    transition: transform var(--transition), opacity var(--transition);
    border-radius: 1px;
}

.header__toggle[aria-expanded="true"] .header__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.header__toggle[aria-expanded="true"] .header__toggle-bar:nth-child(2) {
    opacity: 0;
}

.header__toggle[aria-expanded="true"] .header__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.header__mobile-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    padding: 1.5rem;
    flex-direction: column;
    gap: 0.25rem;
}

.header__mobile-nav--open {
    display: flex;
}

.header__mobile-link {
    display: block;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.header__mobile-link:hover {
    background: var(--color-bg-tint);
    color: var(--color-bamboo);
}

@media (min-width: 768px) {
    .header__nav {
        display: flex;
    }

    .header__cta {
        display: inline-flex;
    }

    .header__toggle {
        display: none;
    }
}

@media (max-width: 767px) {
    .header__cta--desktop {
        display: none;
    }
}

/* Hero
   ========================================================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    background: linear-gradient(160deg, var(--color-bg-tint) 0%, var(--color-bg-tint-deep) 50%, var(--color-white) 100%);
    overflow: hidden;
}

.hero__pattern {
    position: absolute;
    inset: 0;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='120' viewBox='0 0 60 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0v120M30 20c-8-4-12-8-12-12M30 40c8 4 12 8 12 12M30 60c-8-4-12-8-12-12M30 80c8 4 12 8 12 12M30 100c-8-4-12-8-12-12' stroke='%231B4D3E' stroke-width='2' fill='none'/%3E%3C/svg%3E");
    background-size: 60px 120px;
    pointer-events: none;
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: 820px;
    padding: 3rem 0;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(27, 77, 62, 0.08);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-bamboo);
    margin-bottom: 1.5rem;
}

.hero__badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-sage);
    border-radius: 50%;
}

.hero h1 {
    margin-bottom: 1.25rem;
}

.hero__subtitle {
    font-size: clamp(1.0625rem, 2vw, 1.25rem);
    color: var(--color-text-muted);
    max-width: 640px;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero__range {
    display: inline-block;
    padding: 0.75rem 1.25rem;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 2.5rem;
}

.hero__range-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.hero__range-value {
    font-family: var(--font-heading);
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-bamboo);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* About
   ========================================================================== */

.about__grid {
    display: grid;
    gap: 3rem;
    align-items: center;
}

.about__highlights {
    display: grid;
    gap: 1.5rem;
}

.about__highlight {
    padding: 1.75rem;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.about__highlight-value {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-bamboo);
    margin-bottom: 0.25rem;
}

.about__highlight-label {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

.about__text p:last-child {
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .about__grid {
        grid-template-columns: 1.2fr 1fr;
    }
}

/* Cards Grid
   ========================================================================== */

.cards-grid {
    display: grid;
    gap: 1.5rem;
}

.cards-grid--2 {
    grid-template-columns: 1fr;
}

.cards-grid--3 {
    grid-template-columns: 1fr;
}

.cards-grid--4 {
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .cards-grid--2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .cards-grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .cards-grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .cards-grid--3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .cards-grid--4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

.card {
    padding: 2rem;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tint);
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
    color: var(--color-bamboo);
}

.card__icon svg {
    width: 24px;
    height: 24px;
}

.card h3 {
    margin-bottom: 0.5rem;
}

.card p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
    line-height: 1.6;
}

/* Industry Cards
   ========================================================================== */

.industry-card {
    text-align: center;
    padding: 1.75rem 1.25rem;
}

.industry-card .card__icon {
    margin: 0 auto 1rem;
}

.industry-card h3 {
    font-size: 1.0625rem;
}

/* Feature Cards
   ========================================================================== */

.feature-card {
    text-align: left;
}

.feature-card .card__icon {
    background: linear-gradient(135deg, var(--color-bg-tint) 0%, var(--color-bg-tint-deep) 100%);
}

/* Portfolio
   ========================================================================== */

.country-card {
    text-align: center;
    padding: 2.5rem 2rem;
}

.country-card__flag {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1;
}

.country-card h3 {
    margin-bottom: 0.5rem;
}

.portfolio__disclaimer {
    text-align: center;
    max-width: 640px;
    margin: 3rem auto 0;
    padding: 1.25rem 1.5rem;
    background: var(--color-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    font-size: 0.9375rem;
    font-style: italic;
    color: var(--color-text-muted);
}

/* Form
   ========================================================================== */

.form-card {
    max-width: 800px;
    margin: 0 auto;
    padding: clamp(2rem, 5vw, 3rem);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.form-grid {
    display: grid;
    gap: 1.5rem;
}

.form-grid--2 {
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .form-grid--2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.form-group--full {
    grid-column: 1 / -1;
}

.form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
}

.form-label__required {
    color: var(--color-error);
    margin-left: 0.125rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--color-text);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-sage);
    box-shadow: 0 0 0 3px rgba(74, 124, 111, 0.15);
}

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

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

.form-help {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.form-error {
    font-size: 0.8125rem;
    color: var(--color-error);
    display: none;
}

.form-error--visible {
    display: block;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 0.2rem;
    accent-color: var(--color-bamboo);
    flex-shrink: 0;
}

.form-checkbox label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    cursor: pointer;
}

.form-notice {
    padding: 1rem 1.25rem;
    background: var(--color-bg-tint);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    border-left: 3px solid var(--color-sage);
}

.form-file {
    position: relative;
}

.form-file input[type="file"] {
    width: 100%;
    padding: 0.75rem;
    font-size: 0.875rem;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg-tint);
    cursor: pointer;
    transition: border-color var(--transition);
}

.form-file input[type="file"]:hover {
    border-color: var(--color-sage);
}

.honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

.form-alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    margin-bottom: 1.5rem;
    display: none;
}

.form-alert--success {
    display: block;
    background: rgba(27, 77, 62, 0.08);
    color: var(--color-bamboo);
    border: 1px solid rgba(27, 77, 62, 0.2);
}

.form-alert--error {
    display: block;
    background: rgba(192, 57, 43, 0.08);
    color: var(--color-error);
    border: 1px solid rgba(192, 57, 43, 0.2);
}

/* Contact
   ========================================================================== */

.contact__grid {
    display: grid;
    gap: 2rem;
    max-width: 640px;
    margin: 0 auto;
}

.contact__item {
    text-align: center;
    padding: 2rem;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.contact__item-label {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.contact__item-value {
    font-family: var(--font-heading);
    font-size: 1.375rem;
    color: var(--color-bamboo);
}

.contact__item-value a {
    color: inherit;
}

@media (min-width: 640px) {
    .contact__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Footer
   ========================================================================== */

.footer {
    background: var(--color-bamboo);
    color: rgba(255, 255, 255, 0.85);
    padding: 2.5rem 0;
}

.footer__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    text-align: center;
}

.footer__logo img {
    height: 48px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.9;
}

.footer__links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.footer__links a {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.875rem;
    transition: color var(--transition);
}

.footer__links a:hover {
    color: var(--color-white);
}

.footer__copy {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Legal Pages
   ========================================================================== */

.legal-page {
    padding-top: calc(var(--header-height) + 3rem);
    padding-bottom: var(--section-padding);
}

.legal-content {
    max-width: 760px;
    margin: 0 auto;
}

.legal-content h1 {
    margin-bottom: 0.5rem;
}

.legal-content .legal-updated {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
}

.legal-content h2 {
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.legal-content p,
.legal-content li {
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}

.legal-content ul {
    list-style: disc;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

/* Animations
   ========================================================================== */

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal--visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* Utility
   ========================================================================== */

.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;
}

.text-center {
    text-align: center;
}

.mt-2 {
    margin-top: 2rem;
}