/* ==============================
   BASE STYLES
   ============================== */

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-weight: var(--fw-regular);
    line-height: var(--lh-normal);
    color: var(--clr-text);
    background-color: var(--clr-bg);
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: var(--fw-bold);
    line-height: var(--lh-tight);
    color: var(--clr-white);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
    background: none;
}

ul,
ol {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* Section Base */
.section {
    padding: var(--space-5xl) 0;
    position: relative;
}

.section__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section__tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-light));
    color: var(--clr-white);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
}

.section__title {
    font-size: var(--fs-3xl);
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--clr-white), var(--clr-text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section__desc {
    font-size: var(--fs-md);
    color: var(--clr-text-secondary);
    line-height: var(--lh-relaxed);
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Keyframes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 20px var(--clr-primary-glow), 0 0 40px rgba(230, 126, 34, 0.15);
    }

    50% {
        box-shadow: 0 0 30px var(--clr-primary-glow), 0 0 60px rgba(230, 126, 34, 0.25);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

@keyframes scroll {
    0% {
        opacity: 0;
        transform: translateY(0);
    }

    40% {
        opacity: 1;
    }

    80% {
        opacity: 0;
        transform: translateY(12px);
    }

    100% {
        opacity: 0;
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% center;
    }

    100% {
        background-position: 200% center;
    }
}

/* Selection */
::selection {
    background: var(--clr-primary);
    color: var(--clr-white);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--clr-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--clr-surface-hover);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--clr-primary);
}