/* =========================
   RESET & BASE
========================= */

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
}

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

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

ul,
ol {
    padding-left: 1.2rem;
}

button,
input,
select {
    font-family: inherit;
}

/* ===== Selection ===== */
::selection {
    background: rgba(37, 99, 235, 0.18);
    color: #111827;
}

/* Firefox */
::-moz-selection {
    background: rgba(37, 99, 235, 0.18);
    color: #111827;
}


/* ===== Scrollbar ===== */

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(37, 99, 235, 0.6) transparent;
}

/* Chrome, Edge, Safari */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(2, 75, 143, 0.5);
    border-radius: 999px;
    transition: background 0.2s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(2, 75, 143, 0.9);
}


/* =========================
   Layout System
========================= */

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.25rem;
}

section {
    padding: var(--section-padding) 0;
}

@media (max-width: 768px) {
    section {
        padding: var(--section-padding-mobile) 0;
    }
}

/* =========================
   TYPOGRAPHY
========================= */

h1,
h2,
h3 {
    /* font-family: var(--font-display); */
    line-height: 1.25;
    margin: 0 0 1rem;
}

h1 {
    font-size: clamp(2.1rem, 3.75vw, 2.75rem);
}

h2 {
    font-size: clamp(1.5rem, 2.75vw, 2.1rem);
}

h3 {
    font-size: 1.2rem;
}

p {
    margin: 0 0 1.25rem;
    color: var(--color-muted);
}

section h2 {
    margin-bottom: 2.5rem;
}

/* =========================
   BUTTONS
========================= */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.95rem;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-base),
        color var(--transition-base),
        border var(--transition-base),
        transform var(--transition-fast),
        box-shadow var(--transition-fast),
        opacity var(--transition-fast);
}

button:hover,
.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

button:active,
.btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
    opacity: 0.9;
}

button[disabled] {
    box-shadow: none;
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
    border: none;
}

.btn-primary:hover {
    background-color: #ffffff;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-secondary {
    background-color: var(--color-surface);
    color: #4b5563;
    border: 1px solid #4b5563;
}

.btn-secondary:hover {
    background-color: var(--color-muted);
    color: var(--color-surface);
    border: 1px solid var(--color-border);
}

/* =========================
   Animations
========================= */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity 800ms ease,
        transform 800ms ease;
}

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

.reveal.reveal-delay-1 {
    transition-delay: 80ms;
}

.reveal.reveal-delay-2 {
    transition-delay: 200ms;
}

.reveal.reveal-delay-3 {
    transition-delay: 340ms;
}

.reveal.reveal-delay-4 {
    transition-delay: 480ms;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* =========================
   LOGO
========================= */
.logo {
    width: 150px;
    height: 120px;
    margin-left: 1.5rem;
}

.logo img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

@media (max-width: 768px) {
    .logo {
        width: 120px;
        height: 100px;
        margin: 0 auto;
    }
}

/* =========================
   Cards
========================= */
.card {
    background: var(--surface, #fff);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition:
        box-shadow var(--transition-base),
        transform var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-10px);
}