/* ============================================================
   TAMS 2025 — Global design tokens + Header
   ============================================================ */

:root {
    /* Palette — Blue + Orange + Navy */
    --navy:        #0B1628;
    --navy-mid:    #142240;
    --navy-light:  #1D3461;
    --blue:        #2060E8;
    --blue-light:  #4080FF;
    --orange:      #F97316;
    --orange-light: #FB923C;
    --gold:        #F97316;
    --gold-light:  #FB923C;
    --white:       #FFFFFF;
    --off-white:   #F8FAFF;
    --gray-100:    #EFF2F9;
    --gray-300:    #C8D0E4;
    --gray-500:    #8899B4;
    --gray-700:    #4A5B7A;
    --dark:        #060E1E;

    /* Typography */
    --serif:  'Playfair Display', Georgia, serif;
    --sans:   'Inter', system-ui, -apple-system, sans-serif;

    /* Spacing */
    --space-xs:  8px;
    --space-sm:  16px;
    --space-md:  24px;
    --space-lg:  48px;
    --space-xl:  80px;
    --space-2xl: 120px;

    /* Misc */
    --nav-h:      80px;
    --ease:       cubic-bezier(.4,0,.2,1);
    --dur:        .3s;
    --radius-sm:  6px;
    --radius-md:  12px;
    --radius-lg:  24px;
    --shadow-sm:  0 1px 4px rgba(0,0,0,.08);
    --shadow-md:  0 4px 24px rgba(0,0,0,.12);
    --shadow-lg:  0 16px 60px rgba(0,0,0,.18);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--sans);
    color: var(--navy);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a  { text-decoration: none; }
ul { list-style: none; }

/* ── Container ── */
.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Shared button base ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: var(--radius-sm);
    font-family: var(--sans);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .02em;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--dur) var(--ease);
    white-space: nowrap;
}
.btn--lg { padding: 16px 36px; font-size: 15px; }
.btn--gold {
    background: var(--gold);
    color: var(--navy);
    border-color: var(--gold);
}
.btn--gold:hover {
    background: var(--gold-light);
    border-color: var(--gold-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(249,115,22,.4);
}
.btn--navy {
    background: var(--navy);
    color: var(--white);
    border-color: var(--navy);
}
.btn--navy:hover {
    background: var(--navy-mid);
    border-color: var(--navy-mid);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.btn--outline-white {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,.5);
}
.btn--outline-white:hover {
    background: rgba(255,255,255,.1);
    border-color: var(--white);
    transform: translateY(-2px);
}

/* ============================================================
   HEADER / NAV
   ============================================================ */

.header {
    position: fixed;
    inset: 0 0 auto;
    height: var(--nav-h);
    z-index: 900;
    transition: background var(--dur) var(--ease),
                box-shadow  var(--dur) var(--ease);
}

/* Scrolled state — white frosted glass */
.header--scrolled {
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0,0,0,.10);
}

/* Flip text / icon colours when bg turns white */
.header--scrolled .nav__link         { color: var(--navy); }
.header--scrolled .nav__link::after  { background: var(--navy); }
.header--scrolled .nav__toggle span  { background: var(--navy); }

/* ── Nav inner layout ── */
.nav { height: 100%; }

.nav__container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Logo ── */
.nav__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.nav__logo-img {
    height: 48px;
    width: auto;
    max-width: 160px;
    display: block;
    object-fit: contain;
    transition: opacity var(--dur);
}
.nav__logo-img:hover { opacity: .85; }

/* Default = dark logo visible; scrolled = main logo visible */
.nav__logo-img--scrolled { display: none; }
.header--scrolled .nav__logo-img--default { display: none; }
.header--scrolled .nav__logo-img--scrolled { display: block; }

/* ── Menu ── */
.nav__menu {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    justify-content: center;
}

.nav__link {
    position: relative;
    display: block;
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 500;
    color: rgba(255,255,255,.82);
    border-radius: var(--radius-sm);
    transition: color var(--dur);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 3px;
    left: 50%; right: 50%;
    height: 2px;
    background: var(--gold);
    border-radius: 2px;
    transition: left var(--dur) var(--ease), right var(--dur) var(--ease);
}

.nav__link:hover,
.nav__link.active { color: var(--gold); }

.nav__link:hover::after,
.nav__link.active::after { left: 14px; right: 14px; }

/* ── Actions ── */
.nav__actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}

.nav__cta { padding: 10px 22px; font-size: 13px; }

/* ── Hamburger ── */
.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav__toggle span {
    display: block;
    width: 22px; height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: transform var(--dur) var(--ease), opacity var(--dur);
}

.nav__toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ── Mobile ── */
@media (max-width: 768px) {
    .nav__toggle { display: flex; }
    .nav__cta    { display: none; }

    .nav__menu {
        position: fixed;
        top: var(--nav-h);
        left: 0; right: 0;
        background: rgba(11,22,40,.97);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 20px 24px 28px;
        gap: 4px;
        transform: translateY(-8px);
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--dur) var(--ease),
                    transform var(--dur) var(--ease);
    }

    .nav__menu.open {
        opacity: 1;
        transform: translateY(0);
        pointer-events: all;
    }

    .nav__link {
        font-size: 16px;
        padding: 12px 6px;
        width: 100%;
        color: rgba(255,255,255,.85);
    }

    /* Keep white text in mobile menu even when header is scrolled */
    .header--scrolled .nav__link { color: rgba(255,255,255,.85); }
}