/* ============================================================
   BASE.CSS — Dokter English
   Reset · Variables · Typography · Utilities · Animations
   ============================================================ */

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

/* === CSS VARIABLES === */
:root {
    --primary:    #1c315e;
    --primary-dk: #162748;
    --primary-lt: #2e4f8a;
    --secondary:  #ffcd00;
    --secondary-dk: #e6b800;
    --dark:       #111827;
    --light:      #f8fafc;
    --promo:      #dc2626;
    --success:    #059669;

    --gray-50:  #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;

    --blue-50:  #eff6ff;
    --blue-100: #dbeafe;
    --blue-200: #bfdbfe;
    --blue-300: #93c5fd;

    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
    --shadow-md:  0 4px 16px rgba(0,0,0,0.10);
    --shadow-lg:  0 12px 40px rgba(0,0,0,0.14);
    --shadow-xl:  0 20px 60px rgba(0,0,0,0.20);

    --transition: 0.2s ease;
}

/* === TYPOGRAPHY === */
body {
    font-family: 'Poppins', sans-serif;
    color: var(--dark);
    background: #fff;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}
h1, h2, h3, h4, h5, h6, .font-heading {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.25;
}

/* === CONTAINER === */
.container {
    max-width: 80rem;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}
@media (min-width: 640px)  { .container { padding-left: 1.5rem; padding-right: 1.5rem; } }
@media (min-width: 1024px) { .container { padding-left: 2rem;   padding-right: 2rem;   } }

/* === SECTION HEADER === */
.section-header {
    text-align: center;
    max-width: 44rem;
    margin: 0 auto 3rem;
}
.section-label {
    display: inline-block;
    padding: .375rem 1rem;
    border-radius: var(--radius-full);
    background: rgba(28,49,94,0.1);
    color: var(--primary);
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    margin-bottom: .75rem;
}
.section-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.875rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1.25;
    margin-bottom: .75rem;
}
@media (min-width: 1024px) { .section-title { font-size: 2.25rem; } }
.section-header p {
    color: var(--gray-500);
    font-size: 1rem;
    font-weight: 500;
}

/* === BUTTONS === */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: var(--primary);
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: .9rem;
    padding: .875rem 1.75rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: background var(--transition), transform var(--transition);
    box-shadow: 0 4px 14px rgba(28,49,94,0.3);
}
.btn-primary:hover { background: var(--primary-dk); transform: translateY(-2px); }

.btn-yellow {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    background: var(--secondary);
    color: var(--primary);
    font-family: 'Montserrat', sans-serif;
    font-weight: 900;
    font-size: 1rem;
    padding: 1rem 2.5rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: background var(--transition), transform var(--transition);
    box-shadow: 0 6px 20px rgba(255,205,0,0.4);
}
.btn-yellow:hover { background: var(--secondary-dk); transform: translateY(-2px); }

.btn-wa {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    background: #25D366;
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: .95rem;
    padding: .875rem 2rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: background var(--transition), transform var(--transition);
    box-shadow: 0 4px 16px rgba(37,211,102,0.4);
}
.btn-wa:hover { background: #1fb855; transform: translateY(-2px); }

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: .9rem;
    padding: .75rem 1.5rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: background var(--transition), color var(--transition);
}
.btn-outline:hover { background: var(--primary); color: #fff; }

/* === ANIMATIONS === */
@keyframes float  { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-15px)} }
@keyframes bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
@keyframes fadeUp { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
@keyframes pulse  { 0%,100%{transform:scale(1)} 50%{transform:scale(1.04)} }
@keyframes ping   { 75%,100%{transform:scale(1.15);opacity:0} }

.animate-float  { animation: float  6s ease-in-out infinite; }
.animate-bounce { animation: bounce 3s ease-in-out infinite; }
.animate-fadeup { animation: fadeUp .6s ease forwards; }

/* === BLOBS === */
.blob-yellow, .blob-blue {
    position: absolute;
    filter: blur(90px);
    z-index: 0;
    border-radius: 50%;
    pointer-events: none;
}
.blob-yellow { background: var(--secondary); opacity: 0.3; }
.blob-blue   { background: var(--primary);   opacity: 0.2; }

/* === BADGE / TAG === */
.badge {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .3rem .75rem;
    border-radius: var(--radius-full);
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .04em;
}
.badge-success { background: rgba(5,150,105,0.1); color: var(--success); border: 1px solid rgba(5,150,105,0.25); }
.badge-promo   { background: rgba(220,38,38,0.1);  color: var(--promo);   border: 1px solid rgba(220,38,38,0.25); }
.badge-primary { background: rgba(28,49,94,0.08); color: var(--primary); border: 1px solid rgba(28,49,94,0.15); }

/* === FLOATING WA BUTTON === */
.wa-float {
    position: fixed;
    bottom: 1.75rem;
    right: 1.75rem;
    z-index: 999;
    display: flex;
    align-items: center;
    gap: .75rem;
    background: #25D366;
    color: #fff;
    text-decoration: none;
    border-radius: var(--radius-full);
    padding: .875rem 1.5rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: .9rem;
    box-shadow: 0 8px 28px rgba(37,211,102,0.5);
    transition: transform var(--transition), box-shadow var(--transition);
}
.wa-float:hover { transform: translateY(-4px) scale(1.03); box-shadow: 0 12px 36px rgba(37,211,102,0.6); }
.wa-float i { font-size: 1.3rem; }
.wa-float span { display: none; }
@media (min-width: 480px) { .wa-float span { display: inline; } }
.wa-float::before {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: var(--radius-full);
    border: 3px solid rgba(37,211,102,0.45);
    animation: ping 2s cubic-bezier(0,0,0.2,1) infinite;
}

/* === PAGE HERO (inner pages) === */
.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-lt) 100%);
    padding: 4rem 0 3rem;
    position: relative;
    overflow: hidden;
}
.page-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}
.page-hero__inner { position: relative; z-index: 1; }
.page-hero__breadcrumb {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .8rem;
    color: rgba(255,255,255,0.6);
    margin-bottom: 1rem;
    flex-wrap: wrap;
}
.page-hero__breadcrumb a { color: rgba(255,255,255,0.6); text-decoration: none; transition: color var(--transition); }
.page-hero__breadcrumb a:hover { color: var(--secondary); }
.page-hero__breadcrumb span { color: var(--secondary); }
.page-hero__label {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .4rem 1rem;
    border-radius: var(--radius-full);
    background: rgba(255,205,0,0.2);
    border: 1px solid rgba(255,205,0,0.4);
    color: var(--secondary);
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    margin-bottom: .75rem;
}
.page-hero__title {
    font-family: 'Montserrat', sans-serif;
    font-size: 2rem;
    font-weight: 900;
    color: #fff;
    line-height: 1.2;
    margin-bottom: .75rem;
}
@media (min-width: 768px)  { .page-hero__title { font-size: 2.5rem; } }
@media (min-width: 1024px) { .page-hero__title { font-size: 3rem; } }
.page-hero__title em { color: var(--secondary); font-style: normal; }
.page-hero__desc {
    color: rgba(255,255,255,0.75);
    font-size: 1rem;
    max-width: 44rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}
.page-hero__ctas { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Hero two-column layout with image */
.page-hero__inner--with-image {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}
.page-hero__content {
    flex: 1 1 0;
    min-width: 0;
}
.page-hero__image {
    flex: 0 0 auto;
    display: none;
}
@media (min-width: 768px) {
    .page-hero__image {
        display: block;
        width: 340px;
    }
}
@media (min-width: 1024px) {
    .page-hero__image {
        width: 420px;
    }
}
.page-hero__image img {
    width: 100%;
    height: auto;
    border-radius: 1.25rem;
    display: block;
    object-fit: cover;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
}

/* === UTILITIES === */
.text-center { text-align: center; }
.mt-1 { margin-top: .25rem; }
.mt-2 { margin-top: .5rem; }
.mt-3 { margin-top: .75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }