* {
    box-sizing: border-box;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-soft: #eff6ff;
    --secondary: #0f172a;
    --text: #0f172a;
    --muted: #64748b;
    --border: #dbeafe;
    --white: #ffffff;
    --bg: #f8fbff;
    --success-bg: #dcfce7;
    --success-text: #166534;
    --error-bg: #fee2e2;
    --error-text: #991b1b;
    --shadow: 0 10px 30px rgba(37, 99, 235, 0.08);
    --shadow-lg: 0 18px 50px rgba(15, 23, 42, 0.12);
    --radius: 18px;
    --radius-sm: 12px;
    --transition: 0.25s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.08), transparent 30%),
        linear-gradient(180deg, #f8fbff 0%, #eef5ff 100%);
    color: var(--text);
}

a {
    color: inherit;
    text-decoration: none;
}

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

.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

/* HEADER */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(14px);
    background: rgba(255, 255, 255, 0.88);
    border-bottom: 1px solid rgba(37, 99, 235, 0.08);
}

.header-inner {
    min-height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.logo {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
}

.logo-image {
    height: 44px;
    width: auto;
    display: block;
    object-fit: contain;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.main-nav a {
    padding: 10px 14px;
    border-radius: 999px;
    color: var(--secondary);
    font-weight: 600;
    transition: var(--transition);
}

.main-nav a:hover {
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.nav-cta {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white) !important;
    box-shadow: 0 10px 22px rgba(37, 99, 235, 0.22);
}

.nav-cta:hover {
    transform: translateY(-1px);
    background: linear-gradient(135deg, var(--primary-dark), #1e40af);
}

/* MAIN */
.site-main {
    padding: 34px 0 60px;
    min-height: calc(100vh - 160px);
}

/* ALERTS */
.alert {
    padding: 14px 18px;
    margin-bottom: 18px;
    border-radius: 14px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: var(--shadow);
}

.alert-success {
    background: var(--success-bg);
    color: var(--success-text);
}

.alert-error {
    background: var(--error-bg);
    color: var(--error-text);
}

/* HERO */
.hero {
    position: relative;
    overflow: hidden;
    border-radius: 30px;
    padding: 70px 55px;
    background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.98), rgba(29, 78, 216, 0.92)),
        linear-gradient(120deg, #2563eb 0%, #1d4ed8 100%);
    color: var(--white);
    box-shadow: var(--shadow-lg);
    margin-bottom: 32px;
}

.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
}

.hero::before {
    width: 260px;
    height: 260px;
    top: -70px;
    right: -80px;
}

.hero::after {
    width: 180px;
    height: 180px;
    bottom: -50px;
    left: -40px;
}

.hero-logo-mark {
    position: absolute;
    top: 40%;
    right: 58px;
    transform: translateY(-50%);
    width: min(34vw, 420px);
    pointer-events: none;
    z-index: 1;
    opacity: 0.50;
}

.hero-logo-image {
    width: 100%;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 18px 40px rgba(15, 23, 42, 0.12));
}

.hero-inner {
    position: relative;
    z-index: 2;
    max-width: 700px;
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.3px;
    margin-bottom: 20px;
}

.hero h1 {
    margin: 0 0 16px;
    font-size: 52px;
    line-height: 1.08;
    letter-spacing: -1.2px;
}

.hero p {
    margin: 0;
    font-size: 18px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    max-width: 620px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 28px;
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 18px;
    border: 0;
    border-radius: 14px;
    cursor: pointer;
    font-weight: 700;
    font-size: 14px;
    transition: var(--transition);
}

.btn-primary {
    color: var(--white);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.22);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(37, 99, 235, 0.3);
}

.btn-light {
    background: var(--white);
    color: var(--primary-dark);
}

.btn-light:hover {
    transform: translateY(-2px);
}

/* SECTION */
.section {
    margin-top: 34px;
}

.section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.section-head h2 {
    margin: 0;
    font-size: 30px;
    color: var(--secondary);
}

.section-head p {
    margin: 6px 0 0;
    color: var(--muted);
    font-size: 15px;
}

/* CARD */
.card {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(37, 99, 235, 0.08);
    border-radius: 22px;
    padding: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 38px rgba(15, 23, 42, 0.1);
}

/* GRID */
.grid {
    display: grid;
    gap: 20px;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* FEATURE BOX */
.feature-card {
    padding: 28px 24px;
    background: var(--white);
    border: 1px solid rgba(37, 99, 235, 0.08);
    border-radius: 22px;
    box-shadow: var(--shadow);
}

.feature-icon {
    width: 58px;
    height: 58px;
    border-radius: 18px;
    background: linear-gradient(135deg, #dbeafe, #eff6ff);
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 16px;
}

.feature-card h3 {
    margin: 0 0 10px;
    font-size: 20px;
    color: var(--secondary);
}

.feature-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}

/* CATEGORY BOX */
.category-card {
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    border: 1px solid rgba(37, 99, 235, 0.1);
    border-radius: 20px;
    padding: 22px;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.category-card:hover {
    transform: translateY(-4px);
    border-color: rgba(37, 99, 235, 0.22);
}

.category-card h3 {
    margin: 0 0 10px;
    font-size: 18px;
    color: var(--secondary);
}

.category-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.6;
}

/* LISTING CARD */
.listing-card {
    overflow: hidden;
    padding: 0;
}

.listing-image {
    height: 220px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-dark);
    font-size: 18px;
    font-weight: 700;
}

.listing-body {
    padding: 22px;
}

.listing-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
}

.meta-pill {
    display: inline-flex;
    align-items: center;
    padding: 7px 12px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 700;
}

.listing-card h3 {
    margin: 0 0 10px;
    font-size: 22px;
    color: var(--secondary);
}

.listing-card p {
    margin: 0 0 18px;
    color: var(--muted);
    line-height: 1.7;
}

.listing-footer {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.listing-user {
    font-size: 14px;
    color: var(--muted);
    font-weight: 600;
}

/* FORM */
.form-group {
    margin-bottom: 18px;
}

label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--secondary);
}

input,
textarea,
select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #cbd5e1;
    border-radius: 14px;
    font-size: 15px;
    background: #ffffff;
    color: var(--secondary);
    transition: var(--transition);
}

input:focus,
textarea:focus,
select:focus {
    border-color: #60a5fa;
    outline: none;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

textarea {
    resize: vertical;
    min-height: 140px;
}

/* FOOTER */
.site-footer {
    margin-top: 20px;
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: #cbd5e1;
    padding: 26px 0;
    text-align: center;
    border-top-left-radius: 28px;
    border-top-right-radius: 28px;
}

/* RESPONSIVE */
@media (max-width: 900px) {
    .hero {
        padding: 50px 28px;
    }

    .hero h1 {
        font-size: 40px;
    }

    .header-inner {
        flex-direction: column;
        align-items: flex-start;
        padding: 14px 0;
    }

    .main-nav {
        width: 100%;
    }
}

@media (max-width: 640px) {
    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }

    .section-head h2 {
        font-size: 24px;
    }

    .site-main {
        padding: 24px 0 40px;
    }

    .card,
    .feature-card,
    .category-card {
        padding: 20px;
    }
}

.auth-wrap {
    max-width: 760px;
    margin: 0 auto;
}

.center-card {
    max-width: 720px;
    margin: 0 auto;
}

.message-bubble {
    max-width: 75%;
    padding: 14px 16px;
    border-radius: 18px;
    box-shadow: 0 8px 20px rgba(15,23,42,0.08);
}

textarea {
    min-height: 130px;
}

.card h3 {
    color: #0f172a;
}

.listing-image {
    height: 220px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-dark);
    font-size: 18px;
    font-weight: 700;
    overflow: hidden;
}

.listing-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.listing-image {
    height: 220px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-dark);
    font-size: 18px;
    font-weight: 700;
    overflow: hidden;
}

.listing-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.filter-form .form-group {
    margin-bottom: 0;
}

.filter-form input,
.filter-form select {
    background: #fff;
}

.hero-search-wrap {
    margin-top: 34px;
    max-width: 980px;
}

.hero-search-form {
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 24px;
    padding: 18px;
    backdrop-filter: blur(10px);
}

.hero-search-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) auto;
    gap: 14px;
    align-items: end;
}

.hero-search-grid > .form-group {
    margin-bottom: 0;
}

.hero-search-form label {
    color: #ffffff;
    margin-bottom: 8px;
}

.hero-search-form input,
.hero-search-form select {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.35);
}

.hero-search-button {
    display: flex;
    align-items: end;
    align-self: end;
}

.hero-search-button .btn {
    min-height: 50px;
    width: 100%;
}

@media (max-width: 900px) {
    .hero-search-grid {
        grid-template-columns: 1fr;
    }
}

.hero-search-wrap {
    margin-top: 34px;
    max-width: 980px;
}

.hero-search-form {
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 24px;
    padding: 18px;
    backdrop-filter: blur(10px);
}

.hero-search-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) auto;
    gap: 14px;
    align-items: end;
}

.hero-search-grid > .form-group {
    margin-bottom: 0;
}

.hero-search-form label {
    color: #ffffff;
    margin-bottom: 8px;
}

.hero-search-form input,
.hero-search-form select {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.35);
}

.hero-search-button {
    display: flex;
    align-items: end;
    align-self: end;
}

.hero-search-button .btn {
    min-height: 50px;
    width: 100%;
}

@media (max-width: 900px) {
    .hero-search-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1100px) {
    .hero-logo-mark {
        width: min(32vw, 320px);
        right: 32px;
        opacity: 0.12;
    }

    .hero-inner {
        max-width: 660px;
    }
}

@media (max-width: 900px) {
    .hero-logo-mark {
        display: none;
    }
}

@media (max-width: 640px) {
    .logo-image {
        height: 38px;
    }

    .hero-search-button .btn {
        width: 100%;
    }
}