* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}

/* Page Loader */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid transparent;
    border-bottom-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--primary-hover);
}

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

ul {
    list-style: none;
}

button {
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    background: none;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* Universal Button Component */
.btn-primary,
.btn-secondary,
.btn-enquire,
.btn-apartment,
.btn-submit {
    display: inline-block;
    padding: 0.875rem 1rem;
    border-radius: var(--radius-md);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    background: transparent;
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

/* Bottom-to-top fill animation */
.btn-primary::before,
.btn-secondary::before,
.btn-enquire::before,
.btn-apartment::before,
.btn-submit::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    transform: translateY(100%);
    transition: transform var(--transition-base);
    z-index: -1;
}

.btn-primary:hover::before,
.btn-secondary:hover::before,
.btn-enquire:hover::before,
.btn-apartment:hover::before,
.btn-submit:hover::before {
    transform: translateY(0);
}

.btn-primary:hover,
.btn-secondary:hover,
.btn-enquire:hover,
.btn-apartment:hover,
.btn-submit:hover {
    color: var(--text-light);
    border-color: transparent;
}

/* Dark variant - black text/semi-transparent black border initially */
.btn-primary.btn-dark,
.btn-secondary.btn-dark,
.btn-enquire.btn-dark,
.btn-apartment.btn-dark,
.btn-submit.btn-dark {
    color: var(--text-primary);
    border-color: rgba(0, 0, 0, 0.3);
}

/* Dark variant hover - white text, transparent border */
.btn-primary.btn-dark:hover,
.btn-secondary.btn-dark:hover,
.btn-enquire.btn-dark:hover,
.btn-apartment.btn-dark:hover,
.btn-submit.btn-dark:hover {
    color: var(--text-light);
    border-color: transparent;
}

/* Remove default hidden state - let GSAP handle it */
.reveal {
    opacity: 1;
    transform: translateY(0);
}

.fade-in {
    opacity: 1;
}

@media (max-width: 768px) {
    .section-header {
        margin-bottom: var(--spacing-2xl);
    }
}