:root {
    --primary: #29497b;      /* blue theme */
    --secondary: #3fa1e3;
    --accent: #2256a7;
    --lightbg: #f0f4fb;
    --white: #fff;
    --shadow: 0 4px 22px rgba(63,161,227,0.12);
    --nav-grad: linear-gradient(135deg, #29497b, #3fa1e3);
    --card-gradient: linear-gradient(135deg, #eef6ff 0%, #f9fcfd 100%);
}

/* ==== DARK THEME ==== */
.theme-dark {
    --primary: #171d2b;
    --secondary: #2a528a;
    --accent: #3fd3e3;
    --lightbg: #232c3d;
    --white: #111727;
    --shadow: 0 2px 22px rgba(60,90,150,0.21);
    --nav-grad: linear-gradient(90deg,#172551,#1b315f);
    --card-gradient: linear-gradient(135deg,#26324c 30%, #141d2c 100%);
    color-scheme: dark;
}
.theme-dark body { background: #131c2b; }
.theme-dark footer { color: #dce7f9; background: #171d2b;}
.theme-dark .navbar { color: #f7f7f7; }
.theme-dark .hero-slider .hero-overlay { color: #eee; }
.theme-dark .q-block, 
.theme-dark .step-card { color:#cfd9ed; background: #232c3d; }
.theme-dark .action-section,
.theme-dark .guide-section { background: #182132; }

/* ==== GREEN THEME ==== */
.theme-green {
    --primary: #125c53;
    --secondary: #13cea8;
    --accent: #1c9574;
    --lightbg: #e3fbee;
    --white: #fff;
    --nav-grad: linear-gradient(90deg,#127a5c,#13cea8 90%);
    --card-gradient: linear-gradient(135deg,#d4fff0 0%, #e0f9ee 100%);
}
.theme-green body { background: linear-gradient(120deg,#d4fff0 0%, #ecfdf7 100%); }

/* ==== PINK THEME ==== */
.theme-pink {
    --primary: #b23352;
    --secondary: #edbada;
    --accent: #d703b9;
    --lightbg: #fff0f6;
    --white: #fff;
    --nav-grad: linear-gradient(90deg,#b23352 70%, #f69df3 100%);
    --card-gradient: linear-gradient(135deg,#fff0f6 0%, #fbe8ff 100%);
}
.theme-pink body { background: linear-gradient(120deg,#fff0f6 0%, #ffe2f4 100%); }

/* ==== CLASSIC THEME ==== */
.theme-classic {
    --primary: #282828;
    --secondary: #cea16e;
    --accent: #76512f;
    --lightbg: #fcf8f3;
    --white: #fff;
    --nav-grad: linear-gradient(90deg,#282828,#cea16e 80%);
    --card-gradient: linear-gradient(135deg,#fffbe7 0%, #eadaab 100%);
}
.theme-classic body { background: linear-gradient(120deg,#fffbe7 0%, #f7f2e5 100%); }
.theme-classic footer { background: #eadaab; color: #624a17; } 

body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #eef6ff 0%, #f9fcfd 100%);
    min-height: 100vh;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 36px;
    background: var(--nav-grad);
    border-bottom: 3px solid var(--secondary);
    box-shadow: 0 2px 10px rgba(41,73,123,0.10);
    position: sticky; top: 0; z-index: 100;
}

.brand {
    color: #fff;
    font-weight: bold;
    font-size: 1.6em;
    letter-spacing: 1px;
    display: flex; align-items: center; gap: 9px;
}
.brand::before {
    content: "🎒";
    font-size: 1.05em;
}

.nav-actions {
    display: flex; align-items: center;
}
.nav-actions select {
    margin-right: 12px;
    padding: 7px 13px;
    border-radius: 14px;
    border: 1px solid #bbb;
    font-size: 1em;
    background: #f8fbff;
    color: #29497b;
    transition: border 0.16s;
}
.nav-actions select:focus { border-color: var(--secondary);}
.nav-actions button {
    margin-left: 10px;
    padding: 9px 26px;
    border: none;
    border-radius: 22px;
    background: linear-gradient(90deg, var(--secondary) 40%, var(--accent) 100%);
    color: #fff;
    font-weight: 600;
    font-size: 1em;
    cursor: pointer;
    box-shadow: 0 1px 8px rgba(41,73,123,0.09);
    transition: background 0.19s, transform 0.15s;
}
.nav-actions button:hover {
    background: linear-gradient(90deg, var(--accent) 20%, var(--secondary) 100%);
    transform: scale(1.08);
}
main {
    width: 100vw;
    padding: 0;
    overflow-x: hidden;
}

/* ==== HERO / SLIDER SECTION ==== */
.hero-slider {
    position: relative;
    min-height: 62vh;
    width: 100vw;
    overflow: hidden;
    margin-bottom: 0;
}
.hero-slider .slider {
    height: 100%;
    width: 100vw;
    position: absolute;
    top: 0; left: 0;
    z-index: 1;
}
.hero-slider .slide {
    position: absolute;
    width: 100vw;
    height: 62vh;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.7s;
    z-index: 1;
}
.hero-slider .slide.active { opacity: 1; z-index: 2; }
.hero-slider .hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100vw; height: 100%;
    background: linear-gradient(100deg,rgba(41,73,123,0.48), rgba(58,152,219,0.18) 89%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 10;
    color: #fff;
    text-align: center;
    padding: 0 22px;
}
.hero-slider h1 {
    font-size: 2.5em;
    font-weight: bold;
    margin-bottom: 10px;
    text-shadow: 0 3px 12px rgba(34,34,44,0.14);
    letter-spacing: 1px;
}
.hero-slider .tagline {
    font-size: 1.26em;
    font-style: italic;
    margin-bottom: 14px;
    color: #cfe7ff;
    font-weight: 400;
    text-shadow: 0 2px 8px rgba(34,34,44,0.15);
}
.hero-slider .desc {
    font-size: 1.12em;
    font-weight: 300;
    letter-spacing: 0.02em;
    margin-bottom: 19px;
    max-width: 490px;
    color: #def0ff;
    text-shadow: 0 1px 5px #357;
}
.hero-slider .scroll-down {
    font-size: 1.18em;
    animation: bob 1.7s infinite;
    color: #fff;
    margin-top: 18px;
    font-weight: 500;
}
@keyframes bob {
    0%, 100% { transform: translateY(0);}
    50% { transform: translateY(10px);}
}
.slider-controls {
    position: absolute;
    width: 100vw;
    bottom: 22px;
    display: flex;
    justify-content: center;
    z-index: 15;
    gap: 9px;
}
.slider-controls .dot {
    height: 13px; width: 13px;
    border-radius: 50%;
    background: #fff5;
    border: 2px solid #fff;
    display: inline-block;
    cursor: pointer;
    transition: background 0.18s;
}
.slider-controls .dot.active { background: var(--secondary); border-color: #edf9ff;}

/* ==== GUIDE SECTION ==== */
.guide-section {
    background: var(--card-gradient);
    padding: 50px 0 38px 0;
    box-shadow: 0 2px 18px rgba(58,152,219,0.04);
}
.guide-section h2 {
    color: var(--primary);
    text-align: center;
    margin-bottom: 36px;
    letter-spacing: 1.5px;
}
.steps {
    display: flex;
    justify-content: center;
    gap: 34px;
    flex-wrap: wrap;
    max-width: 960px;
    margin: auto;
}
.step-card {
    background: var(--lightbg);
    border-radius: 15px;
    box-shadow: 0 4px 18px rgba(41,73,123,0.04);
    padding: 28px 33px;
    margin: 10px 0;
    text-align: center;
    width: 200px;
    min-width: 140px;
    display: flex; flex-direction: column; align-items: center;
    transition: transform 0.16s, box-shadow 0.15s;
}
.step-card:hover {
    transform: translateY(-6px) scale(1.045);
    box-shadow: 0 6px 24px rgba(63,161,227,0.16);
}
.step-icon {
    font-size: 2.2em;
    margin-bottom: 12px;
}
.step-card h3 {
    font-size: 1.1em;
    color: var(--accent);
    margin: 0 0 4px 0;
    font-weight: 700;
}
.step-card p {
    font-size: 0.99em;
    color: #415860;
    margin: 0;
}

/* ==== ACTION (QUESTIONS) SECTION ==== */
.action-section {
    padding: 57px 0 41px 0;
    background: var(--card-gradient);
    text-align: center;
    box-shadow: 0 2px 22px rgba(29,53,87,0.034);
}
.action-section h2 {
    color: var(--primary);
    margin-bottom: 28px;
    font-size: 1.45em;
}
.questions {
    display: flex; justify-content: center; gap: 38px; margin-bottom: 19px;
    flex-wrap: wrap;
}
.q-block {
    background: var(--lightbg);
    border-radius: 11px;
    padding: 17px 32px;
    box-shadow: 0 3px 13px rgba(63,161,227,0.062);
    color: var(--primary);
    font-size: 1.13em;
    font-weight: 500;
}

.action-note {
    color: #506888;
    margin: 18px 0 17px 0;
    font-size: 1.07em;
}
.action-buttons button {
    margin: 0 13px;
    padding: 10px 26px;
    border-radius: 21px;
    background: linear-gradient(90deg,var(--accent) 0%, var(--secondary) 90%);
    border: none;
    color: #fff;
    font-size: 1.1em;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.18s, transform 0.13s;
    box-shadow: 0 2px 8px #eee;
}
.action-buttons button:hover {
    background: linear-gradient(90deg, #13dac6 0%, var(--accent) 100%);
    transform: scale(1.08);
}

.explore-block {
    margin-top: 30px;
}
#explore-btn {
    padding: 12px 32px;
    border-radius: 23px;
    border: 2px solid var(--primary);
    background: #fff;
    font-weight: 700;
    font-size: 1.05em;
    color: var(--primary);
    cursor: pointer;
    box-shadow: 0 1px 8px rgba(58,152,219,0.06);
    transition: background 0.18s, color 0.14s, border 0.12s, transform 0.12s;
}
#explore-btn:hover {
    background: var(--primary);
    color: #fff;
    border: 2px solid var(--secondary);
    transform: scale(1.06);
}

/* ==== FOOTER ==== */
footer {
    background: var(--lightbg);
    margin-top: 0;
    text-align: center;
    color: var(--accent);
    font-size: 1em;
    padding: 32px 0 26px 0;
    letter-spacing: 0.38px;
    border-top: 2px solid #e7e7e7;
}

/* ======= RESPONSIVE ======= */
@media (max-width:900px) {
    .steps { gap: 16px;}
    .navbar { padding: 15px 6vw;}
}
@media (max-width:700px) {
    .navbar { padding: 15px 9px;}
    .hero-slider .hero-overlay { padding: 0 4vw;}
    .hero-slider .slide { height: 310px;}
    .steps { flex-direction: column; align-items: center;}
}
@media (max-width:525px) {
    .hero-slider .slide, .hero-slider { height: 200px; min-height: 150px; }
    .hero-slider .hero-overlay h1 { font-size: 1.18em;}
    .steps { gap: 10px;}
    .step-card { width: 84vw; min-width: 0; padding: 19px 8vw;}
    .action-section, .guide-section { padding-left: 2vw; padding-right: 2vw;}
    .q-block { padding: 13px 2vw;}
    .questions { gap: 11px; flex-direction: column;}
    .action-buttons button, #explore-btn { padding: 10px 6vw;}
}