/* NICHIIN Consultancy – Public site theme
   Bridging India & Japan – clean, professional, trust-focused */

:root {
    --color-bg: #fafbfc;
    --color-surface: #ffffff;
    --color-text: #1a1d21;
    --color-text-muted: #5c6370;
    --color-accent: #c41e3a;
    --color-accent-dark: #9e1830;
    --color-india-saffron: #ff9933;
    --color-india-green: #138808;
    --color-japan-red: #bc002d;
    --color-border: #e8eaed;
    --color-hero-bg: #0f172a;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --space-unit: 0.25rem;
    --container-max: 1200px;
    --header-height: 72px;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0, 0, 0, .08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, .1);
}

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

body.public-page {
    margin: 0;
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
}

.public-main {
    min-height: calc(100vh - 72px);
    padding-top: var(--header-height);
}

/* ----- Header & Nav ----- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}

.header-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    text-decoration: none;
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    gap: 0;
}

.brand-name {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* Header logo only – keep compact size */
.brand .brand-name {
    font-size: 1.5rem;
}

.brand-tagline {
    /* font-size: 0.7rem; */
    font-size: 1rem;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
}

.main-nav .nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.main-nav .nav-link {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius);
    transition: background .2s, color .2s;
}

.main-nav .nav-link:hover,
.main-nav .nav-link.active {
    color: var(--color-accent);
    background: rgba(196, 30, 58, 0.06);
}

/* Register button visibility control */
.nav-register-btn-desktop {
    display: block !important;
}

.nav-register-btn-mobile {
    display: none;
    margin-left: 1rem;
}

@media (max-width: 900px) {
    .nav-toggle {
        display: flex;
    }

    .nav-register-btn-desktop {
        display: none !important;
    }

    .nav-register-btn-mobile {
        display: inline-block;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        max-height: 0;
        overflow: hidden;
        transition: max-height .3s ease;
    }

    .main-nav.open {
        max-height: 80vh;
        overflow-y: auto;
    }

    .main-nav .nav-list {
        flex-direction: column;
        padding: 1rem;
        gap: 0;
    }

    .main-nav .nav-link {
        padding: 0.75rem 1rem;
        width: 100%;
    }
}

/* ----- Sections & Container ----- */
.section {
    padding: 4rem 1.5rem;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
}

/* ----- Hero ----- */
.hero {
    background: linear-gradient(135deg, var(--color-hero-bg) 0%, #1e293b 100%);
    color: #fff;
    padding: 5rem 1.5rem 4rem;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, .8);
    margin-bottom: 1rem;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 1rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero p {
    font-size: 1.1rem;
    opacity: .9;
    max-width: 560px;
    margin: 0 auto 1.5rem;
}

.hero .btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    background: var(--color-accent);
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--radius);
    transition: background .2s, transform .15s;
}

.hero .btn:hover {
    background: var(--color-accent-dark);
    color: #fff;
    transform: translateY(-1px);
}

/* ----- Typography ----- */
.page-title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    margin: 0 0 0.5rem;
    color: var(--color-text);
}

.page-intro {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 640px;
    margin: 0 0 2rem;
}

/* ----- Cards ----- */
.card-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: box-shadow .2s, transform .2s;
}

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

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0 0 0.5rem;
}

.card-meta {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

/* ----- Buttons ----- */
.btn {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius);
    transition: background .2s, color .2s;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 1rem;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--color-accent-dark);
    color: #fff;
}

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

.btn-outline:hover {
    background: var(--color-accent);
    color: #fff;
}

/* ----- Forms ----- */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.35rem;
    color: var(--color-text);
}

.form-control {
    width: 100%;
    padding: 0.65rem 0.9rem;
    font-size: 1rem;
    font-family: var(--font-body);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    transition: border-color .2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.15);
}

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

/* ----- Footer ----- */
.site-footer {
    background: var(--color-text);
    color: rgba(255, 255, 255, .85);
    padding: 3rem 1.5rem 1.5rem;
    margin-top: 4rem;
}

.footer-inner {
    max-width: var(--container-max);
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand-name,
.footer-contact h4,
.footer-partner h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin: 0 0 0.5rem;
    color: #fff;
}

.footer-tagline {
    font-size: 0.85rem;
    opacity: .9;
    margin: 0 0 0.25rem;
}

.footer-location,
.footer-contact p,
.footer-partner p {
    margin: 0.25rem 0;
    font-size: 0.9rem;
}

.site-footer a {
    color: rgba(255, 255, 255, .9);
    text-decoration: none;
}

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

.footer-bottom {
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, .15);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.85rem;
    opacity: .8;
}

.footer-bottom a {
    color: rgba(255, 255, 255, .9);
}

/* ----- Utilities ----- */
.text-center {
    text-align: center;
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

/* India–Japan accent bar (optional use) */
.accent-bar {
    height: 4px;
    background: linear-gradient(90deg, var(--color-india-saffron), var(--color-india-green), var(--color-japan-red));
    margin-bottom: 1.5rem;
    border-radius: 2px;
}