@import url('https://fonts.cdnfonts.com/css/proxima-nova-2');

:root {
    /* ─── Power + Slides Palette ─── */
    --lime:          #C3D809;
    --lime-dark:     #a8bb07;
    --lime-light:    #d4eb1a;
    --dark:          #222022;
    --dark-2:        #2d2b2d;
    --dark-3:        #383638;
    --dark-4:        #4a484a;

    /* Semantic aliases */
    --primary:       var(--lime);
    --primary-dark:  var(--lime-dark);
    --primary-light: var(--lime-light);

    --bg-base:       var(--dark);
    --bg-surface:    var(--dark-2);
    --bg-elevated:   var(--dark-3);
    --bg-muted:      var(--dark-4);

    --text-primary:  #f0f0f0;
    --text-secondary:#a8a8a8;
    --text-muted:    #6b6b6b;
    --text-on-lime:  #111111;

    --border-subtle: rgba(195, 216, 9, 0.12);
    --border-mid:    rgba(195, 216, 9, 0.25);
    --border-strong: rgba(195, 216, 9, 0.5);

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.4);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.5);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.6);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.7);
    --shadow-lime: 0 0 20px rgba(195,216,9,0.25);
    --shadow-lime-lg: 0 0 40px rgba(195,216,9,0.35);

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

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
}

/* ─── Reset & Base ─── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Proxima Nova', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    max-width: 100%;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Proxima Nova', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: 0.02em;
}

.font-display {
    font-family: 'Proxima Nova', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 900;
    letter-spacing: 0.03em;
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--dark-2); }
::-webkit-scrollbar-thumb { background: var(--dark-4); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--lime-dark); }

/* ─── Glass / Card Components ─── */
.glass-panel {
    background: rgba(34,32,34,0.95) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
}

.glass-card {
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-subtle) !important;
    box-shadow: var(--shadow-md) !important;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.glass-card:hover {
    border-color: var(--border-mid) !important;
    box-shadow: var(--shadow-lg) !important;
}

.glass-input {
    background: var(--bg-elevated) !important;
    border: 1px solid var(--border-subtle) !important;
    color: var(--text-primary) !important;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.glass-input:focus {
    outline: none !important;
    border-color: var(--lime) !important;
    box-shadow: 0 0 0 3px rgba(195,216,9,0.15) !important;
}

.glass-input::placeholder { color: var(--text-muted) !important; }

/* ─── Glow active state ─── */
.glow-active {
    box-shadow: 0 0 0 1px var(--border-mid), var(--shadow-lime) !important;
}

/* ─── Background mesh / texture ─── */
.bg-mesh {
    background-color: var(--bg-base) !important;
    background-image:
        radial-gradient(ellipse 80% 50% at 20% -10%, rgba(195,216,9,0.08) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 110%, rgba(195,216,9,0.05) 0%, transparent 60%) !important;
}

/* ─── Navbar ─── */
#navbar-container {
    background: var(--dark-2) !important;
    border-bottom: 1px solid var(--border-subtle) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    overflow-x: hidden !important;
    width: 100% !important;
    max-width: 100vw !important;
}

#navbar-container nav a {
    color: var(--text-secondary) !important;
    transition: color 0.2s ease, background 0.2s ease;
}

#navbar-container nav a:hover {
    color: var(--lime) !important;
    background-color: rgba(195,216,9,0.08) !important;
}

/* Active Nav Pill */
#navbar-container nav a.active-nav-link {
    background-color: rgba(195,216,9,0.12) !important;
    color: var(--lime) !important;
}

/* Nav Buttons */
#navbar-container .nav-btn {
    color: var(--text-secondary) !important;
    background: transparent !important;
    font-family: 'Proxima Nova', 'Helvetica Neue', Arial, sans-serif !important;
    font-weight: 700 !important;
    font-size: 0.875rem !important;
    padding: 0.4rem 1rem !important;
    border-radius: 0.5rem !important;
    border: 1px solid transparent !important;
    transition: all 0.2s ease !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-transform: uppercase !important;
    letter-spacing: 0.05em !important;
}

#navbar-container .nav-btn:hover {
    color: var(--lime) !important;
    border-color: var(--border-mid) !important;
    background-color: rgba(195,216,9,0.08) !important;
}

#navbar-container .nav-btn.active-nav-btn {
    color: var(--lime) !important;
    border-color: var(--border-strong) !important;
    background-color: rgba(195,216,9,0.12) !important;
}

#navbar-container .nav-btn.active-nav-btn:hover {
    background-color: rgba(195,216,9,0.18) !important;
}

/* Navbar user text */
#navbar-container .text-gray-400,
#navbar-container .text-slate-400 {
    color: var(--text-muted) !important;
}

#navbar-container .text-blue-400,
#navbar-container .text-white {
    color: var(--text-primary) !important;
}

/* ─── Lime accent text gradient ─── */
.text-gradient-shine {
    background: linear-gradient(90deg, var(--lime-dark), var(--lime), var(--lime-light), var(--lime));
    background-size: 300% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textShine 4s linear infinite;
    display: inline-block;
}

@keyframes textShine {
    0%   { background-position: 0% center; }
    100% { background-position: 300% center; }
}

/* ─── Primary Buttons ─── */
.btn-primary,
a.btn-primary {
    background: var(--lime) !important;
    color: var(--text-on-lime) !important;
    font-family: 'Proxima Nova', 'Helvetica Neue', Arial, sans-serif !important;
    font-weight: 800 !important;
    border: none !important;
    box-shadow: 0 4px 16px rgba(195,216,9,0.3) !important;
    transition: all 0.2s ease !important;
}

.btn-primary:hover,
a.btn-primary:hover {
    background: var(--lime-light) !important;
    box-shadow: 0 6px 24px rgba(195,216,9,0.45) !important;
    transform: translateY(-1px) !important;
}

/* ─── Gradient Buttons (replaces blue/indigo gradients) ─── */
.bg-gradient-to-r.from-blue-600,
.bg-gradient-to-r.from-primary-blue,
[class*="from-blue-"][class*="to-indigo-"],
[class*="from-primary-blue"] {
    background: var(--lime) !important;
    color: var(--text-on-lime) !important;
    box-shadow: 0 4px 16px rgba(195,216,9,0.3) !important;
}

/* ─── Profile board (logged-in card) ─── */
#profile-logged-in {
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-subtle) !important;
    color: var(--text-primary) !important;
    box-shadow: var(--shadow-lg) !important;
}

#profile-logged-in h3 {
    color: var(--text-primary) !important;
}

#profile-logged-in p,
#profile-logged-in span,
#profile-logged-in div:not(#student-progress-bar) {
    color: var(--text-secondary) !important;
}

/* Profile card stats panel */
#battle-arena-card .h-16.w-16 {
    background: rgba(195,216,9,0.08) !important;
    border-color: rgba(195,216,9,0.15) !important;
}

#battle-arena-card .h-16.w-16 i { color: var(--lime) !important; }

#battle-arena-card a[href="login.html"],
#battle-arena-card a[href="register.html"] {
    background: var(--lime) !important;
    border: none !important;
    color: var(--text-on-lime) !important;
    font-family: 'Proxima Nova', 'Helvetica Neue', Arial, sans-serif !important;
    font-weight: 800 !important;
    box-shadow: 0 4px 16px rgba(195,216,9,0.3) !important;
    transition: all 0.2s ease !important;
}

#battle-arena-card a[href="login.html"]:hover,
#battle-arena-card a[href="register.html"]:hover {
    background: var(--lime-light) !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 6px 24px rgba(195,216,9,0.45) !important;
}

/* Progress bar */
#battle-arena-card #student-progress-bar {
    background: var(--lime) !important;
}

#battle-arena-card .w-full.bg-slate-950 {
    background: var(--dark-4) !important;
}

/* Score / accuracy highlights */
#battle-arena-card #student-score {
    color: var(--lime) !important;
    font-weight: 800 !important;
}

#battle-arena-card #student-accuracy {
    color: var(--lime) !important;
    font-weight: 800 !important;
}

#battle-arena-card #student-xp-progress {
    color: var(--lime) !important;
    font-weight: 800 !important;
}

/* ─── View Standings Button ─── */
#btn-view-standings {
    background: transparent !important;
    border: 2px solid var(--lime) !important;
    color: var(--lime) !important;
    font-family: 'Proxima Nova', 'Helvetica Neue', Arial, sans-serif !important;
    font-weight: 800 !important;
    box-shadow: none !important;
    transition: all 0.2s ease !important;
}

#btn-view-standings:hover {
    background: var(--lime) !important;
    color: var(--text-on-lime) !important;
    box-shadow: 0 6px 24px rgba(195,216,9,0.4) !important;
    transform: translateY(-1px) !important;
}

/* ─── Override Tailwind slate/gray utilities to match dark theme ─── */
.text-slate-100,
.text-slate-200,
.text-slate-300,
.text-gray-200,
.text-gray-300 {
    color: var(--text-primary) !important;
}

.text-slate-400,
.text-slate-500,
.text-gray-400,
.text-gray-500 {
    color: var(--text-secondary) !important;
}

.text-blue-400,
.text-blue-300,
.text-indigo-400 {
    color: var(--lime) !important;
}

.text-emerald-400,
.text-emerald-500,
.text-green-400 {
    color: var(--lime) !important;
}

.bg-white\/5 {
    background-color: rgba(195,216,9,0.05) !important;
}

.bg-white\/10 {
    background-color: rgba(195,216,9,0.08) !important;
}

.border-white\/5,
.border-white\/10 {
    border-color: var(--border-subtle) !important;
}

/* Blue pill / badge (landing page "Now Active") */
.bg-blue-500\/10 { background-color: rgba(195,216,9,0.1) !important; }
.border-blue-500\/20 { border-color: rgba(195,216,9,0.25) !important; }
.text-blue-400 { color: var(--lime) !important; }
.bg-blue-400 { background-color: var(--lime) !important; }

/* Indigo overrides */
.from-blue-600 { --tw-gradient-from: var(--lime) !important; }
.to-indigo-600 { --tw-gradient-to: var(--lime-dark) !important; }
.from-blue-500 { --tw-gradient-from: var(--lime-light) !important; }
.to-indigo-500 { --tw-gradient-to: var(--lime) !important; }
.shadow-blue-500\/20 { --tw-shadow-color: rgba(195,216,9,0.2) !important; }
.shadow-blue-500\/30 { --tw-shadow-color: rgba(195,216,9,0.3) !important; }

/* Progress bars with blue */
.from-blue-500.to-indigo-500,
.bg-gradient-to-r.from-blue-500 {
    background: var(--lime) !important;
}

/* Ambient glow orbs */
.bg-blue-500\/10 { background-color: rgba(195,216,9,0.06) !important; }
.bg-indigo-500\/10 { background-color: rgba(195,216,9,0.04) !important; }

/* ─── Guest card (logged-out) ─── */
#profile-logged-out {
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-subtle) !important;
}

/* ─── Footer ─── */
footer {
    background: var(--dark-2) !important;
    border-top: 1px solid var(--border-subtle) !important;
    padding-top: 0.75rem !important;
    padding-bottom: 0.75rem !important;
}

footer span,
footer a,
footer p,
footer .text-gray-500,
footer .text-slate-500 {
    color: var(--text-muted) !important;
    font-weight: 500 !important;
    background: none !important;
    -webkit-background-clip: initial !important;
    -webkit-text-fill-color: initial !important;
    display: inline-block !important;
}

footer .footer-copyright {
    color: #ffffff !important;
    font-weight: 400 !important;
}

/* ─── Orange streak widget override ─── */
.bg-orange-500\/10 { background-color: rgba(195,216,9,0.1) !important; }
.border-orange-500\/20 { border-color: rgba(195,216,9,0.2) !important; }
.text-orange-400,
.text-orange-500 { color: var(--lime) !important; }

/* ─── Red error states (keep readable) ─── */
.bg-red-500\/10 { background-color: rgba(239,68,68,0.08) !important; }
.border-red-500\/20 { border-color: rgba(239,68,68,0.2) !important; }
.text-red-400,
.text-red-500 { color: #f87171 !important; }

/* ─── Emerald / green check icons ─── */
.text-emerald-500 { color: var(--lime) !important; }

/* ─── Badge classes ─── */
.badge-platinum { background: linear-gradient(135deg, #6b7280, #9ca3af) !important; }
.badge-gold     { background: linear-gradient(135deg, var(--lime-dark), var(--lime)) !important; }
.badge-silver   { background: linear-gradient(135deg, #64748b, #94a3b8) !important; }
.badge-bronze   { background: linear-gradient(135deg, #78350f, #d97706) !important; }

/* ─── Animations ─── */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.5; }
}

.animate-pulse { animation: pulse 2s cubic-bezier(0.4,0,0.6,1) infinite; }

/* ─── Lime glow utility ─── */
.lime-glow { box-shadow: var(--shadow-lime); }
.lime-glow-lg { box-shadow: var(--shadow-lime-lg); }

/* ─── Mobile Responsive Navbar ─── */
@media (max-width: 767px) {
    #navbar-container .nav-btn {
        padding: 0.4rem 0.75rem !important;
        font-size: 0.8rem !important;
    }
    /* Mobile dropdown nav panel links */
    #mobile-nav-panel .nav-btn {
        padding: 0.5rem 0.75rem !important;
        font-size: 0.85rem !important;
        text-transform: none !important;
        letter-spacing: normal !important;
        border: none !important;
        border-radius: 0.5rem !important;
        background: transparent !important;
    }
    #mobile-nav-panel .nav-btn:hover {
        background: rgba(195,216,9,0.08) !important;
        border-color: transparent !important;
    }
    #mobile-nav-panel .nav-btn.active-nav-btn {
        background: rgba(195,216,9,0.12) !important;
        border-color: var(--border-strong) !important;
    }
}

/* ─── Quiz Option Cards ─── */
.quiz-option {
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-subtle) !important;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
    position: relative;
    overflow: hidden;
}

.quiz-option:hover {
    border-color: var(--border-mid) !important;
    background: rgba(195, 216, 9, 0.04) !important;
    transform: translateX(4px) !important;
}

.quiz-option.selected {
    background: rgba(195, 216, 9, 0.08) !important;
    border-color: var(--lime) !important;
    box-shadow: var(--shadow-lime) !important;
}